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determining the load on a corner "post"
I may have asked this before, but I have A Project in mind. This is much simpler than the last time, when I wanted to build 4 humanoid robots to pick up a shipping container at the corners and move it. "Hup, hup, hup, ... detail halt!" What I want to do this time is to just "slide an I-beam under the outbuilding, attach a wheeled unit to each end, pivot the building and roll it to when I want it." No doubt "A simple procedure involving lasers." I'm sure. Somewhere. But, my question is: load capacity of the units. Assume a GW of 3 tons, does that meant that each wheeled unit has to be able to 'carry' a three ton load, or can I divide the gross weight by 4, add a "fudge factor" and hope for the best? This is one of those things I'd talk to one of the old guys, but I find I am one of the old guys. tschus pyotr -- pyotr filipivich "What was I, before I was what I am, and will I be when I'm not? You were what you are before you are what you is, and you will be what you ain't." |
determining the load on a corner "post"
On Sunday, September 2, 2018 at 4:35:09 PM UTC-4, pyotr filipivich wrote:
I may have asked this before, but I have A Project in mind. This is much simpler than the last time, when I wanted to build 4 humanoid robots to pick up a shipping container at the corners and move it. "Hup, hup, hup, ... detail halt!" What I want to do this time is to just "slide an I-beam under the outbuilding, attach a wheeled unit to each end, pivot the building and roll it to when I want it." No doubt "A simple procedure involving lasers." I'm sure. Somewhere. But, my question is: load capacity of the units. Assume a GW of 3 tons, does that meant that each wheeled unit has to be able to 'carry' a three ton load, or can I divide the gross weight by 4, add a "fudge factor" and hope for the best? This is one of those things I'd talk to one of the old guys, but I find I am one of the old guys. tschus pyotr -- pyotr filipivich "What was I, before I was what I am, and will I be when I'm not? You were what you are before you are what you is, and you will be what you ain't." Please let every one have a better description of what you want to accomplish. You confuse me when you say slip a i beam under the stucture and later ask about dividing the load by 4. Do you mean two i beams? Dan |
determining the load on a corner "post"
"pyotr filipivich" wrote in message
... I may have asked this before, but I have A Project in mind. This is much simpler than the last time, when I wanted to build 4 humanoid robots to pick up a shipping container at the corners and move it. "Hup, hup, hup, ... detail halt!" What I want to do this time is to just "slide an I-beam under the outbuilding, attach a wheeled unit to each end, pivot the building and roll it to when I want it." No doubt "A simple procedure involving lasers." I'm sure. Somewhere. But, my question is: load capacity of the units. Assume a GW of 3 tons, does that meant that each wheeled unit has to be able to 'carry' a three ton load, or can I divide the gross weight by 4, add a "fudge factor" and hope for the best? This is one of those things I'd talk to one of the old guys, but I find I am one of the old guys. tschus pyotr ================================================== ====== I think you need to have Iggy pay you a visit with his latest giant forklift toy :-). Hmm, 3 tons is 6000 lbs which is a really common rating for car hauling trailers with two 3000 lb axles. Any chance you could scrounge a couple of those axles and extend as needed to stick out past the sides of your container? Don't know what safety factor they build into those but since I assume you are just crawling around the yard a bit and not going on a road at any speed you could probably get away with a 5000 lb rating for 2 axles. Or get a whole 16 or 18' trailer and use a bunch of pipes as rollers and just winch your container on and off the trailer to move it :-). -- Regards, Carl Ijames |
determining the load on a corner "post"
On Sun, 02 Sep 2018 13:35:26 -0700, pyotr filipivich
wrote: I may have asked this before, but I have A Project in mind. This is much simpler than the last time, when I wanted to build 4 humanoid robots to pick up a shipping container at the corners and move it. "Hup, hup, hup, ... detail halt!" What I want to do this time is to just "slide an I-beam under the outbuilding, attach a wheeled unit to each end, pivot the building and roll it to when I want it." No doubt "A simple procedure involving lasers." I'm sure. Somewhere. But, my question is: load capacity of the units. Assume a GW of 3 tons, does that meant that each wheeled unit has to be able to 'carry' a three ton load, or can I divide the gross weight by 4, add a "fudge factor" and hope for the best? This is one of those things I'd talk to one of the old guys, but I find I am one of the old guys. tschus pyotr What are the dimensions of the building, is it empty or full, what is the floor construction and how far do you need to move it in a lineal direction? __ "Poor widdle Wudy...mentally ill, lies constantly, doesnt know who he is, or even what gender "he" is. No more pathetic creature has ever walked the earth. But...he is locked into a mental hospital for the safety of the public. Which is a very good thing." Asun rauhassa, valmistaudun sotaan. --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus |
determining the load on a corner "post"
"pyotr filipivich" wrote in message
... I may have asked this before, but I have A Project in mind. This is much simpler than the last time, when I wanted to build 4 humanoid robots to pick up a shipping container at the corners and move it. "Hup, hup, hup, ... detail halt!" What I want to do this time is to just "slide an I-beam under the outbuilding, attach a wheeled unit to each end, pivot the building and roll it to when I want it." No doubt "A simple procedure involving lasers." I'm sure. Somewhere. But, my question is: load capacity of the units. Assume a GW of 3 tons, does that meant that each wheeled unit has to be able to 'carry' a three ton load, or can I divide the gross weight by 4, add a "fudge factor" and hope for the best? This is one of those things I'd talk to one of the old guys, but I find I am one of the old guys. tschus pyotr You need to be clearer about the "wheeled unit". Your one I-beam and four wheels only makes sense to me if you rig it like a tandem axle trailer. If the two(?) wheels on a side are on a pivoting bar that lets them adjust to uneven ground then they share the load, if their axles are rigidly attached to the I-beam then they don't. |
determining the load on a corner "post"
" on Sun, 2 Sep 2018 14:55:20 -0700
(PDT) typed in rec.crafts.metalworking the following: On Sunday, September 2, 2018 at 4:35:09 PM UTC-4, pyotr filipivich wrote: I may have asked this before, but I have A Project in mind. This is much simpler than the last time, when I wanted to build 4 humanoid robots to pick up a shipping container at the corners and move it. "Hup, hup, hup, ... detail halt!" What I want to do this time is to just "slide an I-beam under the outbuilding, attach a wheeled unit to each end, pivot the building and roll it to when I want it." No doubt "A simple procedure involving lasers." I'm sure. Somewhere. But, my question is: load capacity of the units. Assume a GW of 3 tons, does that meant that each wheeled unit has to be able to 'carry' a three ton load, or can I divide the gross weight by 4, add a "fudge factor" and hope for the best? This is one of those things I'd talk to one of the old guys, but I find I am one of the old guys. Please let every one have a better description of what you want to accomplish. You confuse me when you say slip a i beam under the stucture and later ask about dividing the load by 4. Do you mean two i beams? Yeah. "front" and "back", with a support at each end. Thinking I'll change it to bungie cords. -- pyotr filipivich "With Age comes Wisdom. Although far too often, Age travels alone." |
determining the load on a corner "post"
"Jim Wilkins" on Sun, 2 Sep 2018 21:06:01 -0400
typed in rec.crafts.metalworking the following: "pyotr filipivich" wrote in message .. . I may have asked this before, but I have A Project in mind. This is much simpler than the last time, when I wanted to build 4 humanoid robots to pick up a shipping container at the corners and move it. "Hup, hup, hup, ... detail halt!" What I want to do this time is to just "slide an I-beam under the outbuilding, attach a wheeled unit to each end, pivot the building and roll it to when I want it." No doubt "A simple procedure involving lasers." I'm sure. Somewhere. But, my question is: load capacity of the units. Assume a GW of 3 tons, does that meant that each wheeled unit has to be able to 'carry' a three ton load, or can I divide the gross weight by 4, add a "fudge factor" and hope for the best? This is one of those things I'd talk to one of the old guys, but I find I am one of the old guys. tschus pyotr You need to be clearer about the "wheeled unit". Your one I-beam and four wheels only makes sense to me if you rig it like a tandem axle trailer. If the two(?) wheels on a side are on a pivoting bar that lets them adjust to uneven ground then they share the load, if their axles are rigidly attached to the I-beam then they don't. Can you guys not answer the question I didn't ask? Grumble, grumble; kids these days. Just like when I was a boy. Reevaluating, I'm going to be working with nanobots which will interlace sort of like legos or ants. So what I want to know, if each nanobot can lift a gram, do I need the swarm at one corner to be able to hoist 3,000,000 grams, or can they just lift a quarter of that? I don't want to have to turn out more than I need is why I'm asking. tschus pyotr -- pyotr filipivich "With Age comes Wisdom. Although far too often, Age travels alone." |
determining the load on a corner "post"
Gunner Asch on Sun, 02 Sep 2018 15:03:32 -0700
typed in rec.crafts.metalworking the following: On Sun, 02 Sep 2018 13:35:26 -0700, pyotr filipivich wrote: I may have asked this before, but I have A Project in mind. This is much simpler than the last time, when I wanted to build 4 humanoid robots to pick up a shipping container at the corners and move it. "Hup, hup, hup, ... detail halt!" What I want to do this time is to just "slide an I-beam under the outbuilding, attach a wheeled unit to each end, pivot the building and roll it to when I want it." No doubt "A simple procedure involving lasers." I'm sure. Somewhere. But, my question is: load capacity of the units. Assume a GW of 3 tons, does that meant that each wheeled unit has to be able to 'carry' a three ton load, or can I divide the gross weight by 4, add a "fudge factor" and hope for the best? This is one of those things I'd talk to one of the old guys, but I find I am one of the old guys. What are the dimensions of the building, is it empty or full, what is the floor construction and how far do you need to move it in a lineal direction? One is 10'x16'by16' high, "framed" floor with 9/8 T&G flooring glued & nailed. It's rotating 90° and moving ~20 feet more or less. The other is 10'x12'by10' high. Also going to be rotated, but moved about 30 feet. The Big One is 26 by 32 and two stories. It is jut going to get rotated. But I might add a basement while I have it off the piers. Once the preliminaries are done, then Ill be scaling down to move my footlockers around. (I had this idea for a camp setup, using a 20' shipping container as a base, and outfitting the Clanks with appropriate livery, depending on if I'm reenacting medieval or Steampunk. But that's a digression.) What I'd really like to know is: how do I calculate the load bearing capacity needed by the robot which is going to pick up the corner. -- pyotr filipivich "With Age comes Wisdom. Although far too often, Age travels alone." |
determining the load on a corner "post"
On Sun, 02 Sep 2018 13:35:26 -0700, pyotr filipivich
wrote: I may have asked this before, but I have A Project in mind. This is much simpler than the last time, when I wanted to build 4 humanoid robots to pick up a shipping container at the corners and move it. "Hup, hup, hup, ... detail halt!" What I want to do this time is to just "slide an I-beam under the outbuilding, attach a wheeled unit to each end, pivot the building and roll it to when I want it." No doubt "A simple procedure involving lasers." I'm sure. Somewhere. But, my question is: load capacity of the units. Assume a GW of 3 tons, does that meant that each wheeled unit has to be able to 'carry' a three ton load, or can I divide the gross weight by 4, add a "fudge factor" and hope for the best? This is one of those things I'd talk to one of the old guys, but I find I am one of the old guys. This guy did it with pivots and small stones as bearings. Even moved a 30'X40' pole barn 300 feet. Can not find any of his original videos up at the moment, just re-postings such as this link. https://www.youtube.com/watch?v=E5pZ7uR6v8c Bought his CD about 12 years ago, which I have since lost:-( Still have a copy of it on my hard drive;-) -- William |
determining the load on a corner "post"
On Sun, 02 Sep 2018 18:43:38 -0700, pyotr filipivich
wrote: "Jim Wilkins" on Sun, 2 Sep 2018 21:06:01 -0400 typed in rec.crafts.metalworking the following: "pyotr filipivich" wrote in message . .. I may have asked this before, but I have A Project in mind. This is much simpler than the last time, when I wanted to build 4 humanoid robots to pick up a shipping container at the corners and move it. "Hup, hup, hup, ... detail halt!" What I want to do this time is to just "slide an I-beam under the outbuilding, attach a wheeled unit to each end, pivot the building and roll it to when I want it." No doubt "A simple procedure involving lasers." I'm sure. Somewhere. But, my question is: load capacity of the units. Assume a GW of 3 tons, does that meant that each wheeled unit has to be able to 'carry' a three ton load, or can I divide the gross weight by 4, add a "fudge factor" and hope for the best? This is one of those things I'd talk to one of the old guys, but I find I am one of the old guys. tschus pyotr You need to be clearer about the "wheeled unit". Your one I-beam and four wheels only makes sense to me if you rig it like a tandem axle trailer. If the two(?) wheels on a side are on a pivoting bar that lets them adjust to uneven ground then they share the load, if their axles are rigidly attached to the I-beam then they don't. Can you guys not answer the question I didn't ask? Grumble, grumble; kids these days. Just like when I was a boy. Reevaluating, I'm going to be working with nanobots which will interlace sort of like legos or ants. So what I want to know, if each nanobot can lift a gram, do I need the swarm at one corner to be able to hoist 3,000,000 grams, or can they just lift a quarter of that? I don't want to have to turn out more than I need is why I'm asking. tschus pyotr -- pyotr filipivich "With Age comes Wisdom. Although far too often, Age travels alone." If your nonobots can be sure that the lift keeps the object perfectly level, and the CG of the object is exactly in the center, vertically, then each corner will require 1/4 of the total weight to be lifted. |
determining the load on a corner "post"
On Sun, 02 Sep 2018 18:43:38 -0700, pyotr filipivich
wrote: Gunner Asch on Sun, 02 Sep 2018 15:03:32 -0700 typed in rec.crafts.metalworking the following: On Sun, 02 Sep 2018 13:35:26 -0700, pyotr filipivich wrote: I may have asked this before, but I have A Project in mind. This is much simpler than the last time, when I wanted to build 4 humanoid robots to pick up a shipping container at the corners and move it. "Hup, hup, hup, ... detail halt!" What I want to do this time is to just "slide an I-beam under the outbuilding, attach a wheeled unit to each end, pivot the building and roll it to when I want it." No doubt "A simple procedure involving lasers." I'm sure. Somewhere. But, my question is: load capacity of the units. Assume a GW of 3 tons, does that meant that each wheeled unit has to be able to 'carry' a three ton load, or can I divide the gross weight by 4, add a "fudge factor" and hope for the best? This is one of those things I'd talk to one of the old guys, but I find I am one of the old guys. What are the dimensions of the building, is it empty or full, what is the floor construction and how far do you need to move it in a lineal direction? One is 10'x16'by16' high, "framed" floor with 9/8 T&G flooring glued & nailed. It's rotating 90° and moving ~20 feet more or less. The other is 10'x12'by10' high. Also going to be rotated, but moved about 30 feet. The Big One is 26 by 32 and two stories. It is jut going to get rotated. But I might add a basement while I have it off the piers. Once the preliminaries are done, then Ill be scaling down to move my footlockers around. (I had this idea for a camp setup, using a 20' shipping container as a base, and outfitting the Clanks with appropriate livery, depending on if I'm reenacting medieval or Steampunk. But that's a digression.) What I'd really like to know is: how do I calculate the load bearing capacity needed by the robot which is going to pick up the corner. -- pyotr filipivich "With Age comes Wisdom. Although far too often, Age travels alone." Are they on concrete or on dirt? Slab or blocks? The "easy" way to move them..the smaller two..would be to wrap a chain around the bases...flood the ground under each one to get it slick and muddy..and using a dozer ..pull the chain. To rotate..hook a chain AROUND the base and pull that chain..pulling the building around. pull from the right to spin clockwise, from the left to spin counter clockwise. Figure on the 10x16 at 10,000 lbs..empty. Dont try to move any of them with contents. Alternately...you could..could bury a vertical.. 4" thick wall pipe about 4-6' deep..and hook a chain comealong to the wrapping chain..and hook at ground level to apply motive power. The other way..would be to rent a large forklift and simply pick the two of them up, one at a time..and move them to their new spots. The BIG one...will likely need to be cut in half,seperated and spun. Moving a linear 24x36...is not..not..not going to be easy. Trying to move it as a whole with your limited resources..will likely break it in half. The best way of course..is to a have a house mover come in and do the job. No idea what they would charge..it would be a pretty simple job for them..assuming they have some working room. The two small ones as noted..you could do yourself. And depending on your construction..be pretty easy to do. The big one..by yourself..is a mother ****er. If I were you...Id call a house mover and have them come give you a price. They are insured. You are not. If they bust em..they cover it. If you bust em..you are ****ed. And of course..they have to be empty. Gunner __ "Poor widdle Wudy...mentally ill, lies constantly, doesnt know who he is, or even what gender "he" is. No more pathetic creature has ever walked the earth. But...he is locked into a mental hospital for the safety of the public. Which is a very good thing." Asun rauhassa, valmistaudun sotaan. --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus |
determining the load on a corner "post"
On Sun, 02 Sep 2018 18:43:38 -0700, pyotr filipivich
wrote: "Jim Wilkins" on Sun, 2 Sep 2018 21:06:01 -0400 typed in rec.crafts.metalworking the following: "pyotr filipivich" wrote in message . .. I may have asked this before, but I have A Project in mind. This is much simpler than the last time, when I wanted to build 4 humanoid robots to pick up a shipping container at the corners and move it. "Hup, hup, hup, ... detail halt!" What I want to do this time is to just "slide an I-beam under the outbuilding, attach a wheeled unit to each end, pivot the building and roll it to when I want it." No doubt "A simple procedure involving lasers." I'm sure. Somewhere. But, my question is: load capacity of the units. Assume a GW of 3 tons, does that meant that each wheeled unit has to be able to 'carry' a three ton load, or can I divide the gross weight by 4, add a "fudge factor" and hope for the best? This is one of those things I'd talk to one of the old guys, but I find I am one of the old guys. tschus pyotr You need to be clearer about the "wheeled unit". Your one I-beam and four wheels only makes sense to me if you rig it like a tandem axle trailer. If the two(?) wheels on a side are on a pivoting bar that lets them adjust to uneven ground then they share the load, if their axles are rigidly attached to the I-beam then they don't. Can you guys not answer the question I didn't ask? Grumble, grumble; kids these days. Just like when I was a boy. Reevaluating, I'm going to be working with nanobots which will interlace sort of like legos or ants. So what I want to know, if each nanobot can lift a gram, do I need the swarm at one corner to be able to hoist 3,000,000 grams, or can they just lift a quarter of that? I don't want to have to turn out more than I need is why I'm asking. tschus pyotr -- pyotr filipivich "With Age comes Wisdom. Although far too often, Age travels alone." Lifting one corner...of a structure that is not constructed for this..means you are transferring a load through the floor joists, flooring, studs and up through your roof line. IE: **** is gonna break and come un****ed. Best to leave it flat and slide it as a whole rather than loading a radiating point. Call a house mover. Gunner __ "Poor widdle Wudy...mentally ill, lies constantly, doesnt know who he is, or even what gender "he" is. No more pathetic creature has ever walked the earth. But...he is locked into a mental hospital for the safety of the public. Which is a very good thing." Asun rauhassa, valmistaudun sotaan. --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus |
determining the load on a corner "post"
On Sun, 02 Sep 2018 21:51:59 -0400, William Bagwell
wrote: On Sun, 02 Sep 2018 13:35:26 -0700, pyotr filipivich wrote: I may have asked this before, but I have A Project in mind. This is much simpler than the last time, when I wanted to build 4 humanoid robots to pick up a shipping container at the corners and move it. "Hup, hup, hup, ... detail halt!" What I want to do this time is to just "slide an I-beam under the outbuilding, attach a wheeled unit to each end, pivot the building and roll it to when I want it." No doubt "A simple procedure involving lasers." I'm sure. Somewhere. But, my question is: load capacity of the units. Assume a GW of 3 tons, does that meant that each wheeled unit has to be able to 'carry' a three ton load, or can I divide the gross weight by 4, add a "fudge factor" and hope for the best? This is one of those things I'd talk to one of the old guys, but I find I am one of the old guys. This guy did it with pivots and small stones as bearings. Even moved a 30'X40' pole barn 300 feet. Can not find any of his original videos up at the moment, just re-postings such as this link. https://www.youtube.com/watch?v=E5pZ7uR6v8c Bought his CD about 12 years ago, which I have since lost:-( Still have a copy of it on my hard drive;-) A pole barn...is lightly constructed and is able to take point loading. Spinning the 2 small ones is easy. Dragging the 2 small ones is moderately easy. The big one...2 stories tall..is not so easy. __ "Poor widdle Wudy...mentally ill, lies constantly, doesnt know who he is, or even what gender "he" is. No more pathetic creature has ever walked the earth. But...he is locked into a mental hospital for the safety of the public. Which is a very good thing." Asun rauhassa, valmistaudun sotaan. --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus |
determining the load on a corner "post"
"pyotr filipivich" wrote in message
... "Jim Wilkins" on Sun, 2 Sep 2018 21:06:01 -0400 typed in rec.crafts.metalworking the following: "pyotr filipivich" wrote in message . .. I may have asked this before, but I have A Project in mind. This is much simpler than the last time, when I wanted to build 4 humanoid robots to pick up a shipping container at the corners and move it. "Hup, hup, hup, ... detail halt!" What I want to do this time is to just "slide an I-beam under the outbuilding, attach a wheeled unit to each end, pivot the building and roll it to when I want it." No doubt "A simple procedure involving lasers." I'm sure. Somewhere. But, my question is: load capacity of the units. Assume a GW of 3 tons, does that meant that each wheeled unit has to be able to 'carry' a three ton load, or can I divide the gross weight by 4, add a "fudge factor" and hope for the best? This is one of those things I'd talk to one of the old guys, but I find I am one of the old guys. tschus pyotr You need to be clearer about the "wheeled unit". Your one I-beam and four wheels only makes sense to me if you rig it like a tandem axle trailer. If the two(?) wheels on a side are on a pivoting bar that lets them adjust to uneven ground then they share the load, if their axles are rigidly attached to the I-beam then they don't. Can you guys not answer the question I didn't ask? Grumble, grumble; kids these days. Just like when I was a boy. Reevaluating, I'm going to be working with nanobots which will interlace sort of like legos or ants. So what I want to know, if each nanobot can lift a gram, do I need the swarm at one corner to be able to hoist 3,000,000 grams, or can they just lift a quarter of that? I don't want to have to turn out more than I need is why I'm asking. tschus pyotr -- pyotr filipivich "With Age comes Wisdom. Although far too often, Age travels alone." The answer depends on how well you can make the nanobots cooperate to share the load, just like the wheels. It's not just a simple matter of all lifting on the count of 3, they may have to dampen oscillation. Your 2-story building is an inverted pendulum http://web.mit.edu/klund/www/papers/UNP_pendulum.pdf that is inherently unstable if elastically supported below its center of gravity. If it tips the cg shifts toward the low side and the bearers' load increases. The nanobots need a reserve of strength to counter the static increase and dynamic inertia, but if they lift too hard it will tip the other way. Planes have crashed and ships have capsized due to this positive feedback oscillation. https://en.wikipedia.org/wiki/Milburn_G._Apt Segways require solid-state gyros, feedback and considerable processing power to remain balanced. They are a 2 element (wheel) example of your proposed nanobot problem. The quadcopter is a better model for lifting a building. I've only had a brief introduction to the math of over-, under- and critical damping and the oscillations of spring-coupled masses, and none for servo loops. The questions the customer didn't know enough to ask tend to be the hardest to solve, and the reasons there wasn't a simple solution already. -jsw |
determining the load on a corner "post"
"pyotr filipivich" wrote in message
... Gunner Asch on Sun, 02 Sep 2018 15:03:32 -0700 typed in rec.crafts.metalworking the following: On Sun, 02 Sep 2018 13:35:26 -0700, pyotr filipivich wrote: I may have asked this before, but I have A Project in mind. This is much simpler than the last time, when I wanted to build 4 humanoid robots to pick up a shipping container at the corners and move it. "Hup, hup, hup, ... detail halt!" What I want to do this time is to just "slide an I-beam under the outbuilding, attach a wheeled unit to each end, pivot the building and roll it to when I want it." No doubt "A simple procedure involving lasers." I'm sure. Somewhere. But, my question is: load capacity of the units. Assume a GW of 3 tons, does that meant that each wheeled unit has to be able to 'carry' a three ton load, or can I divide the gross weight by 4, add a "fudge factor" and hope for the best? This is one of those things I'd talk to one of the old guys, but I find I am one of the old guys. What are the dimensions of the building, is it empty or full, what is the floor construction and how far do you need to move it in a lineal direction? One is 10'x16'by16' high, "framed" floor with 9/8 T&G flooring glued & nailed. It's rotating 90° and moving ~20 feet more or less. The other is 10'x12'by10' high. Also going to be rotated, but moved about 30 feet. The Big One is 26 by 32 and two stories. It is jut going to get rotated. But I might add a basement while I have it off the piers. Once the preliminaries are done, then Ill be scaling down to move my footlockers around. (I had this idea for a camp setup, using a 20' shipping container as a base, and outfitting the Clanks with appropriate livery, depending on if I'm reenacting medieval or Steampunk. But that's a digression.) What I'd really like to know is: how do I calculate the load bearing capacity needed by the robot which is going to pick up the corner. -- pyotr filipivich "With Age comes Wisdom. Although far too often, Age travels alone." If you pick up one corner of a uniform thickness rectangular plate half the weight will rest on that corner, the other half on the opposite one. A stationary plate can be modeled as a single point mass at the center of gravity with levers reaching out to the corners. http://web.mit.edu/4.441/1_lectures/..._lecture5.html |
determining the load on a corner "post"
"Jim Wilkins" on Mon, 3 Sep 2018 09:24:28 -0400
typed in rec.crafts.metalworking the following: "pyotr filipivich" wrote in message .. . Gunner Asch on Sun, 02 Sep 2018 15:03:32 -0700 typed in rec.crafts.metalworking the following: On Sun, 02 Sep 2018 13:35:26 -0700, pyotr filipivich wrote: I may have asked this before, but I have A Project in mind. This is much simpler than the last time, when I wanted to build 4 humanoid robots to pick up a shipping container at the corners and move it. "Hup, hup, hup, ... detail halt!" What I want to do this time is to just "slide an I-beam under the outbuilding, attach a wheeled unit to each end, pivot the building and roll it to when I want it." No doubt "A simple procedure involving lasers." I'm sure. Somewhere. But, my question is: load capacity of the units. Assume a GW of 3 tons, does that meant that each wheeled unit has to be able to 'carry' a three ton load, or can I divide the gross weight by 4, add a "fudge factor" and hope for the best? This is one of those things I'd talk to one of the old guys, but I find I am one of the old guys. What are the dimensions of the building, is it empty or full, what is the floor construction and how far do you need to move it in a lineal direction? One is 10'x16'by16' high, "framed" floor with 9/8 T&G flooring glued & nailed. It's rotating 90° and moving ~20 feet more or less. The other is 10'x12'by10' high. Also going to be rotated, but moved about 30 feet. The Big One is 26 by 32 and two stories. It is jut going to get rotated. But I might add a basement while I have it off the piers. Once the preliminaries are done, then Ill be scaling down to move my footlockers around. (I had this idea for a camp setup, using a 20' shipping container as a base, and outfitting the Clanks with appropriate livery, depending on if I'm reenacting medieval or Steampunk. But that's a digression.) What I'd really like to know is: how do I calculate the load bearing capacity needed by the robot which is going to pick up the corner. -- pyotr filipivich "With Age comes Wisdom. Although far too often, Age travels alone." If you pick up one corner of a uniform thickness rectangular plate half the weight will rest on that corner, the other half on the opposite one. A stationary plate can be modeled as a single point mass at the center of gravity with levers reaching out to the corners. http://web.mit.edu/4.441/1_lectures/..._lecture5.html Thank you. -- pyotr filipivich "With Age comes Wisdom. Although far too often, Age travels alone." |
determining the load on a corner "post"
Gunner Asch on Mon, 03 Sep 2018 00:21:21 -0700
typed in rec.crafts.metalworking the following: On Sun, 02 Sep 2018 18:43:38 -0700, pyotr filipivich wrote: Gunner Asch on Sun, 02 Sep 2018 15:03:32 -0700 typed in rec.crafts.metalworking the following: On Sun, 02 Sep 2018 13:35:26 -0700, pyotr filipivich wrote: I may have asked this before, but I have A Project in mind. This is much simpler than the last time, when I wanted to build 4 humanoid robots to pick up a shipping container at the corners and move it. "Hup, hup, hup, ... detail halt!" What I want to do this time is to just "slide an I-beam under the outbuilding, attach a wheeled unit to each end, pivot the building and roll it to when I want it." No doubt "A simple procedure involving lasers." I'm sure. Somewhere. But, my question is: load capacity of the units. Assume a GW of 3 tons, does that meant that each wheeled unit has to be able to 'carry' a three ton load, or can I divide the gross weight by 4, add a "fudge factor" and hope for the best? This is one of those things I'd talk to one of the old guys, but I find I am one of the old guys. What are the dimensions of the building, is it empty or full, what is the floor construction and how far do you need to move it in a lineal direction? One is 10'x16'by16' high, "framed" floor with 9/8 T&G flooring glued & nailed. It's rotating 90° and moving ~20 feet more or less. The other is 10'x12'by10' high. Also going to be rotated, but moved about 30 feet. The Big One is 26 by 32 and two stories. It is jut going to get rotated. But I might add a basement while I have it off the piers. Once the preliminaries are done, then Ill be scaling down to move my footlockers around. (I had this idea for a camp setup, using a 20' shipping container as a base, and outfitting the Clanks with appropriate livery, depending on if I'm reenacting medieval or Steampunk. But that's a digression.) What I'd really like to know is: how do I calculate the load bearing capacity needed by the robot which is going to pick up the corner. -- pyotr filipivich "With Age comes Wisdom. Although far too often, Age travels alone." Are they on concrete or on dirt? Unobtanium. You would not believe what I had to do getting the permits. Slab or blocks? Nanofactory fabricated plate. Manufactured with eyes for hoisting. Which is why I just want to know how one calculates the load on the bottle jack at the corner. -- pyotr filipivich "With Age comes Wisdom. Although far too often, Age travels alone." |
determining the load on a corner "post"
John B. Slocomb on Mon, 03 Sep 2018 09:12:11
+0700 typed in rec.crafts.metalworking the following: On Sun, 02 Sep 2018 18:43:38 -0700, pyotr filipivich wrote: "Jim Wilkins" on Sun, 2 Sep 2018 21:06:01 -0400 typed in rec.crafts.metalworking the following: "pyotr filipivich" wrote in message ... I may have asked this before, but I have A Project in mind. This is much simpler than the last time, when I wanted to build 4 humanoid robots to pick up a shipping container at the corners and move it. "Hup, hup, hup, ... detail halt!" What I want to do this time is to just "slide an I-beam under the outbuilding, attach a wheeled unit to each end, pivot the building and roll it to when I want it." No doubt "A simple procedure involving lasers." I'm sure. Somewhere. But, my question is: load capacity of the units. Assume a GW of 3 tons, does that meant that each wheeled unit has to be able to 'carry' a three ton load, or can I divide the gross weight by 4, add a "fudge factor" and hope for the best? This is one of those things I'd talk to one of the old guys, but I find I am one of the old guys. tschus pyotr You need to be clearer about the "wheeled unit". Your one I-beam and four wheels only makes sense to me if you rig it like a tandem axle trailer. If the two(?) wheels on a side are on a pivoting bar that lets them adjust to uneven ground then they share the load, if their axles are rigidly attached to the I-beam then they don't. Can you guys not answer the question I didn't ask? Grumble, grumble; kids these days. Just like when I was a boy. Reevaluating, I'm going to be working with nanobots which will interlace sort of like legos or ants. So what I want to know, if each nanobot can lift a gram, do I need the swarm at one corner to be able to hoist 3,000,000 grams, or can they just lift a quarter of that? I don't want to have to turn out more than I need is why I'm asking. tschus pyotr -- pyotr filipivich "With Age comes Wisdom. Although far too often, Age travels alone." If your nonobots can be sure that the lift keeps the object perfectly level, and the CG of the object is exactly in the center, vertically, then each corner will require 1/4 of the total weight to be lifted. Thanks -- pyotr filipivich "With Age comes Wisdom. Although far too often, Age travels alone." |
determining the load on a corner "post"
Gunner Asch on Mon, 03 Sep 2018 00:24:37 -0700
typed in rec.crafts.metalworking the following: On Sun, 02 Sep 2018 18:43:38 -0700, pyotr filipivich wrote: "Jim Wilkins" on Sun, 2 Sep 2018 21:06:01 -0400 typed in rec.crafts.metalworking the following: "pyotr filipivich" wrote in message ... I may have asked this before, but I have A Project in mind. This is much simpler than the last time, when I wanted to build 4 humanoid robots to pick up a shipping container at the corners and move it. "Hup, hup, hup, ... detail halt!" What I want to do this time is to just "slide an I-beam under the outbuilding, attach a wheeled unit to each end, pivot the building and roll it to when I want it." No doubt "A simple procedure involving lasers." I'm sure. Somewhere. But, my question is: load capacity of the units. Assume a GW of 3 tons, does that meant that each wheeled unit has to be able to 'carry' a three ton load, or can I divide the gross weight by 4, add a "fudge factor" and hope for the best? This is one of those things I'd talk to one of the old guys, but I find I am one of the old guys. tschus pyotr You need to be clearer about the "wheeled unit". Your one I-beam and four wheels only makes sense to me if you rig it like a tandem axle trailer. If the two(?) wheels on a side are on a pivoting bar that lets them adjust to uneven ground then they share the load, if their axles are rigidly attached to the I-beam then they don't. Can you guys not answer the question I didn't ask? Grumble, grumble; kids these days. Just like when I was a boy. Reevaluating, I'm going to be working with nanobots which will interlace sort of like legos or ants. So what I want to know, if each nanobot can lift a gram, do I need the swarm at one corner to be able to hoist 3,000,000 grams, or can they just lift a quarter of that? I don't want to have to turn out more than I need is why I'm asking. tschus pyotr -- pyotr filipivich "With Age comes Wisdom. Although far too often, Age travels alone." Lifting one corner...of a structure that is not constructed for this..means you are transferring a load through the floor joists, flooring, studs and up through your roof line. IE: **** is gonna break and come un****ed. Best to leave it flat and slide it as a whole rather than loading a radiating point. There will be four swarms, with a central coordinator. the issue is: do I need four swarms, each capable of handling the total gross weight, or can they "share the load", so to speak, and so require less per swarm? -- pyotr filipivich "With Age comes Wisdom. Although far too often, Age travels alone." |
determining the load on a corner "post"
Gunner Asch on Mon, 03 Sep 2018 00:26:39 -0700
typed in rec.crafts.metalworking the following: On Sun, 02 Sep 2018 21:51:59 -0400, William Bagwell wrote: On Sun, 02 Sep 2018 13:35:26 -0700, pyotr filipivich wrote: I may have asked this before, but I have A Project in mind. This is much simpler than the last time, when I wanted to build 4 humanoid robots to pick up a shipping container at the corners and move it. "Hup, hup, hup, ... detail halt!" What I want to do this time is to just "slide an I-beam under the outbuilding, attach a wheeled unit to each end, pivot the building and roll it to when I want it." No doubt "A simple procedure involving lasers." I'm sure. Somewhere. But, my question is: load capacity of the units. Assume a GW of 3 tons, does that meant that each wheeled unit has to be able to 'carry' a three ton load, or can I divide the gross weight by 4, add a "fudge factor" and hope for the best? This is one of those things I'd talk to one of the old guys, but I find I am one of the old guys. This guy did it with pivots and small stones as bearings. Even moved a 30'X40' pole barn 300 feet. Can not find any of his original videos up at the moment, just re-postings such as this link. https://www.youtube.com/watch?v=E5pZ7uR6v8c Bought his CD about 12 years ago, which I have since lost:-( Still have a copy of it on my hard drive;-) A pole barn...is lightly constructed and is able to take point loading. Spinning the 2 small ones is easy. Dragging the 2 small ones is moderately easy. The big one...2 stories tall..is not so easy. There are three factors in engineering: cost, complexity and chronology. You can control for two. As I told Petros last spring "It's just engineering" is another way of saying "it is only money." -- pyotr filipivich "With Age comes Wisdom. Although far too often, Age travels alone." |
determining the load on a corner "post"
Jim Wilkins" on Mon, 3 Sep 2018 08:19:32 -0400
typed in rec.crafts.metalworking the following: "pyotr filipivich" wrote in message .. . "Jim Wilkins" on Sun, 2 Sep 2018 21:06:01 -0400 typed in rec.crafts.metalworking the following: "pyotr filipivich" wrote in message ... I may have asked this before, but I have A Project in mind. This is much simpler than the last time, when I wanted to build 4 humanoid robots to pick up a shipping container at the corners and move it. "Hup, hup, hup, ... detail halt!" What I want to do this time is to just "slide an I-beam under the outbuilding, attach a wheeled unit to each end, pivot the building and roll it to when I want it." No doubt "A simple procedure involving lasers." I'm sure. Somewhere. But, my question is: load capacity of the units. Assume a GW of 3 tons, does that meant that each wheeled unit has to be able to 'carry' a three ton load, or can I divide the gross weight by 4, add a "fudge factor" and hope for the best? This is one of those things I'd talk to one of the old guys, but I find I am one of the old guys. tschus pyotr You need to be clearer about the "wheeled unit". Your one I-beam and four wheels only makes sense to me if you rig it like a tandem axle trailer. If the two(?) wheels on a side are on a pivoting bar that lets them adjust to uneven ground then they share the load, if their axles are rigidly attached to the I-beam then they don't. Can you guys not answer the question I didn't ask? Grumble, grumble; kids these days. Just like when I was a boy. Reevaluating, I'm going to be working with nanobots which will interlace sort of like legos or ants. So what I want to know, if each nanobot can lift a gram, do I need the swarm at one corner to be able to hoist 3,000,000 grams, or can they just lift a quarter of that? I don't want to have to turn out more than I need is why I'm asking. tschus pyotr -- pyotr filipivich "With Age comes Wisdom. Although far too often, Age travels alone." The answer depends on how well you can make the nanobots cooperate to share the load, just like the wheels. It's not just a simple matter of all lifting on the count of 3, they may have to dampen oscillation. Your 2-story building is an inverted pendulum http://web.mit.edu/klund/www/papers/UNP_pendulum.pdf that is inherently unstable if elastically supported below its center of gravity. If it tips the cg shifts toward the low side and the bearers' load increases. The nanobots need a reserve of strength to counter the static increase and dynamic inertia, but if they lift too hard it will tip the other way. Planes have crashed and ships have capsized due to this positive feedback oscillation. https://en.wikipedia.org/wiki/Milburn_G._Apt Segways require solid-state gyros, feedback and considerable processing power to remain balanced. They are a 2 element (wheel) example of your proposed nanobot problem. The quadcopter is a better model for lifting a building. I've only had a brief introduction to the math of over-, under- and critical damping and the oscillations of spring-coupled masses, and none for servo loops. The questions the customer didn't know enough to ask tend to be the hardest to solve, and the reasons there wasn't a simple solution already. -jsw Over thinking, again. Coordinating the movements is handled by Calvin & Hobbes Consolidated. I think they have the late model sonic transducers for that. But the load on the bot swarm, that I have to consider. -- pyotr filipivich "With Age comes Wisdom. Although far too often, Age travels alone." |
determining the load on a corner "post"
"pyotr filipivich" wrote in message
... Gunner Asch on Mon, 03 Sep 2018 00:24:37 -0700 typed in rec.crafts.metalworking the following: On Sun, 02 Sep 2018 18:43:38 -0700, pyotr filipivich wrote: "Jim Wilkins" on Sun, 2 Sep 2018 21:06:01 -0400 typed in rec.crafts.metalworking the following: "pyotr filipivich" wrote in message m... I may have asked this before, but I have A Project in mind. This is much simpler than the last time, when I wanted to build 4 humanoid robots to pick up a shipping container at the corners and move it. "Hup, hup, hup, ... detail halt!" What I want to do this time is to just "slide an I-beam under the outbuilding, attach a wheeled unit to each end, pivot the building and roll it to when I want it." No doubt "A simple procedure involving lasers." I'm sure. Somewhere. But, my question is: load capacity of the units. Assume a GW of 3 tons, does that meant that each wheeled unit has to be able to 'carry' a three ton load, or can I divide the gross weight by 4, add a "fudge factor" and hope for the best? This is one of those things I'd talk to one of the old guys, but I find I am one of the old guys. tschus pyotr You need to be clearer about the "wheeled unit". Your one I-beam and four wheels only makes sense to me if you rig it like a tandem axle trailer. If the two(?) wheels on a side are on a pivoting bar that lets them adjust to uneven ground then they share the load, if their axles are rigidly attached to the I-beam then they don't. Can you guys not answer the question I didn't ask? Grumble, grumble; kids these days. Just like when I was a boy. Reevaluating, I'm going to be working with nanobots which will interlace sort of like legos or ants. So what I want to know, if each nanobot can lift a gram, do I need the swarm at one corner to be able to hoist 3,000,000 grams, or can they just lift a quarter of that? I don't want to have to turn out more than I need is why I'm asking. tschus pyotr -- pyotr filipivich "With Age comes Wisdom. Although far too often, Age travels alone." Lifting one corner...of a structure that is not constructed for this..means you are transferring a load through the floor joists, flooring, studs and up through your roof line. IE: **** is gonna break and come un****ed. Best to leave it flat and slide it as a whole rather than loading a radiating point. There will be four swarms, with a central coordinator. the issue is: do I need four swarms, each capable of handling the total gross weight, or can they "share the load", so to speak, and so require less per swarm? -- pyotr filipivich "With Age comes Wisdom. Although far too often, Age travels alone." That's a more coherent definition of the problem. 1/2 of the total per swarm allows for malfunctions, like the other three losing signal and dropping their corners. I've moved several neighborhood structures by jacking them up enough to drive a construction equipment trailer underneath or lifting and swinging them with chain hoists or my shop crane, so I'm not just idly guessing how to do it. I have 1 ton tension and 5 ton compression load cells to actually weigh the building so I don't overstress my equipment. Besides the jacks you might consider rounding up timbers for cribbing, to assemble into supports that won't tip easily like jacks. I have a stack of the cut-off ends of deck beams and posts from a contractor's scrap pile. When I take the wheels off a vehicle to work on it they go under the frame to back up the jacks and stands. The next lifting project is a neighbor's tool shed whose sills are Above Ground pressure-treated that have rotted, despite being up on a concrete block foundation.. For once I'm well equipped with 6" x 12" x 12' oak beams I sawed from trees that had been leaning over the house. -jsw |
determining the load on a corner "post"
On Sun, 02 Sep 2018 13:35:26 -0700, pyotr filipivich
wrote: I may have asked this before, but I have A Project in mind. This is much simpler than the last time, when I wanted to build 4 humanoid robots to pick up a shipping container at the corners and move it. "Hup, hup, hup, ... detail halt!" What I want to do this time is to just "slide an I-beam under the outbuilding, attach a wheeled unit to each end, pivot the building and roll it to when I want it." No doubt "A simple procedure involving lasers." I'm sure. Somewhere. But, my question is: load capacity of the units. Assume a GW of 3 tons, does that meant that each wheeled unit has to be able to 'carry' a three ton load, or can I divide the gross weight by 4, add a "fudge factor" and hope for the best? This is one of those things I'd talk to one of the old guys, but I find I am one of the old guys. Of course, some numb nut will overload a corner or end (unless you're the owner) VBG Check these out. I'm sure you'll come up with something interesting. https://www.youtube.com/watch?v=hgWYesO-FkA Axles https://www.youtube.com/watch?v=EzG_DzCeBt0 Mule https://www.youtube.com/watch?v=CrUw9-m_pSA Power dolly https://www.youtube.com/watch?v=KecvLYEL10g Another dolly https://www.youtube.com/watch?v=g1Do8ygIlfA Airplane tug Last, a Pods setup at 1:34: https://www.youtube.com/watch?v=Q9upzzIgm_c That's the closest to the container trucks at the Port. https://www.youtube.com/watch?v=TYNBTnOJzj0 small version of this Let us know what you come up with, Pete. -- America rose from abnormal origins. The nation didn't grow organ- ically or gradually from indigenous tribes--like, say, the French or the Poles--but emerged out of courageous, conscious acts of will by Pilgrims and Patriots. --Michael Medved, Right Turns |
determining the load on a corner "post"
On Sun, 02 Sep 2018 18:43:38 -0700, pyotr filipivich
wrote: Gunner Asch on Sun, 02 Sep 2018 15:03:32 -0700 typed in rec.crafts.metalworking the following: On Sun, 02 Sep 2018 13:35:26 -0700, pyotr filipivich wrote: I may have asked this before, but I have A Project in mind. This is much simpler than the last time, when I wanted to build 4 humanoid robots to pick up a shipping container at the corners and move it. "Hup, hup, hup, ... detail halt!" What I want to do this time is to just "slide an I-beam under the outbuilding, attach a wheeled unit to each end, pivot the building and roll it to when I want it." No doubt "A simple procedure involving lasers." I'm sure. Somewhere. But, my question is: load capacity of the units. Assume a GW of 3 tons, does that meant that each wheeled unit has to be able to 'carry' a three ton load, or can I divide the gross weight by 4, add a "fudge factor" and hope for the best? This is one of those things I'd talk to one of the old guys, but I find I am one of the old guys. What are the dimensions of the building, is it empty or full, what is the floor construction and how far do you need to move it in a lineal direction? One is 10'x16'by16' high, "framed" floor with 9/8 T&G flooring glued & nailed. It's rotating 90° and moving ~20 feet more or less. The other is 10'x12'by10' high. Also going to be rotated, but moved about 30 feet. The Big One is 26 by 32 and two stories. It is jut going to get rotated. But I might add a basement while I have it off the piers. Is it sturdy enough to allow that manhandling? Have you weighed it? Also, how high do you need to lift any of these buildings? What's the soil like where you want a basement? I'm guessing you want beams to remove the robots from the vicinity of the excavation so you won't have to worry about cave-ins. Das some ambitious chit, mon. Once the preliminaries are done, then Ill be scaling down to move my footlockers around. (I had this idea for a camp setup, using a 20' shipping container as a base, and outfitting the Clanks with appropriate livery, depending on if I'm reenacting medieval or Steampunk. But that's a digression.) Clanks? Which def? https://www.urbandictionary.com/define.php?term=Clank What I'd really like to know is: how do I calculate the load bearing capacity needed by the robot which is going to pick up the corner. Why calculate when you could overengineer the things so they could heft the large buildings onto a single corner with one hand? Compete with Optimus Prime. (He'd have the calcs handy, but go with 25T.) Going out on a limb, I'm guessing you can rule out pneumatics here. -- America rose from abnormal origins. The nation didn't grow organ- ically or gradually from indigenous tribes--like, say, the French or the Poles--but emerged out of courageous, conscious acts of will by Pilgrims and Patriots. --Michael Medved, Right Turns |
determining the load on a corner "post"
On Mon, 03 Sep 2018 09:53:02 -0700, pyotr filipivich
wrote: Gunner Asch on Mon, 03 Sep 2018 00:21:21 -0700 Are they on concrete or on dirt? Unobtanium. You would not believe what I had to do getting the permits. Cool. Then you have some for the bots, too. Slab or blocks? Nanofactory fabricated plate. Manufactured with eyes for hoisting. May I borrow that? Pretty please? Which is why I just want to know how one calculates the load on the bottle jack at the corner. The house-moving companies probably have charts for guesstimating that. Then again, the local building supply company might be able to give you estimates of weight for all the supplies which make a building. They deliver them daily. You'd be surprised how heavy roofing is, likely outweighing the frame. -- America rose from abnormal origins. The nation didn't grow organ- ically or gradually from indigenous tribes--like, say, the French or the Poles--but emerged out of courageous, conscious acts of will by Pilgrims and Patriots. --Michael Medved, Right Turns |
determining the load on a corner "post"
On Mon, 03 Sep 2018 09:53:02 -0700, pyotr filipivich
wrote: Jim Wilkins" on Mon, 3 Sep 2018 08:19:32 -0400 typed in rec.crafts.metalworking the following: The questions the customer didn't know enough to ask tend to be the hardest to solve, and the reasons there wasn't a simple solution already. -jsw Over thinking, again. Coordinating the movements is handled by Calvin & Hobbes Consolidated. I think they have the late model sonic transducers for that. But the load on the bot swarm, that I have to consider. Hell, if you have C&HC there, just use their discombobulators to exit it stage left, then the recombobulators to resolidify at the new site. No calcs necessary. -- America rose from abnormal origins. The nation didn't grow organ- ically or gradually from indigenous tribes--like, say, the French or the Poles--but emerged out of courageous, conscious acts of will by Pilgrims and Patriots. --Michael Medved, Right Turns |
determining the load on a corner "post"
Larry Jaques on Tue, 04 Sep 2018
07:42:19 -0700 typed in rec.crafts.metalworking the following: On Mon, 03 Sep 2018 09:53:02 -0700, pyotr filipivich wrote: Gunner Asch on Mon, 03 Sep 2018 00:21:21 -0700 Are they on concrete or on dirt? Unobtanium. You would not believe what I had to do getting the permits. Cool. Then you have some for the bots, too. Slab or blocks? Nanofactory fabricated plate. Manufactured with eyes for hoisting. May I borrow that? Pretty please? Which is why I just want to know how one calculates the load on the bottle jack at the corner. The house-moving companies probably have charts for guesstimating that. Then again, the local building supply company might be able to give you estimates of weight for all the supplies which make a building. They deliver them daily. You'd be surprised how heavy roofing is, likely outweighing the frame. Do I call up building moving companies when I want to know how strong a post needs to be, to hold the corner of a footlocker up? Do their tables include a Barbie Dream house? -- pyotr filipivich "With Age comes Wisdom. Although far too often, Age travels alone." |
determining the load on a corner "post"
Larry Jaques on Tue, 04 Sep 2018
07:32:04 -0700 typed in rec.crafts.metalworking the following: On Sun, 02 Sep 2018 18:43:38 -0700, pyotr filipivich wrote: Gunner Asch on Sun, 02 Sep 2018 15:03:32 -0700 typed in rec.crafts.metalworking the following: On Sun, 02 Sep 2018 13:35:26 -0700, pyotr filipivich wrote: I may have asked this before, but I have A Project in mind. This is much simpler than the last time, when I wanted to build 4 humanoid robots to pick up a shipping container at the corners and move it. "Hup, hup, hup, ... detail halt!" What I want to do this time is to just "slide an I-beam under the outbuilding, attach a wheeled unit to each end, pivot the building and roll it to when I want it." No doubt "A simple procedure involving lasers." I'm sure. Somewhere. But, my question is: load capacity of the units. Assume a GW of 3 tons, does that meant that each wheeled unit has to be able to 'carry' a three ton load, or can I divide the gross weight by 4, add a "fudge factor" and hope for the best? This is one of those things I'd talk to one of the old guys, but I find I am one of the old guys. What are the dimensions of the building, is it empty or full, what is the floor construction and how far do you need to move it in a lineal direction? One is 10'x16'by16' high, "framed" floor with 9/8 T&G flooring glued & nailed. It's rotating 90° and moving ~20 feet more or less. The other is 10'x12'by10' high. Also going to be rotated, but moved about 30 feet. The Big One is 26 by 32 and two stories. It is jut going to get rotated. But I might add a basement while I have it off the piers. Is it sturdy enough to allow that manhandling? Have you weighed it? Also, how high do you need to lift any of these buildings? What's the soil like where you want a basement? I'm guessing you want beams to remove the robots from the vicinity of the excavation so you won't have to worry about cave-ins. Das some ambitious chit, mon. Once the preliminaries are done, then Ill be scaling down to move my footlockers around. (I had this idea for a camp setup, using a 20' shipping container as a base, and outfitting the Clanks with appropriate livery, depending on if I'm reenacting medieval or Steampunk. But that's a digression.) Clanks? Which def? https://www.urbandictionary.com/define.php?term=Clank "... clanks (impossibly advanced steampunk robots), dirigibles and walking gunboats of the world there are constructs – biological creations which range from Frankenstein-style creatures to talking cats and mouse-sized mammoths." https://en.wikipedia.org/wiki/Girl_Genius What I'd really like to know is: how do I calculate the load bearing capacity needed by the robot which is going to pick up the corner. Why calculate when you could overengineer the things so they could heft the large buildings onto a single corner with one hand? Compete with Optimus Prime. (He'd have the calcs handy, but go with 25T.) Going out on a limb, I'm guessing you can rule out pneumatics here. Changing approaches, decided I can't just roll any of this over the Missus's Daisys, so I want to use a couple Rocs. Maybe some griffins. Now I all need to know what the tension on the straps to the harness will be. And where I can lay my hands on a couple environmentally friendly and sustainably sourced elephant carcases, but that's getting off track. -- pyotr filipivich "With Age comes Wisdom. Although far too often, Age travels alone." |
determining the load on a corner "post"
Larry Jaques on Tue, 04 Sep 2018
08:00:02 -0700 typed in rec.crafts.metalworking the following: On Mon, 03 Sep 2018 09:53:02 -0700, pyotr filipivich wrote: Jim Wilkins" on Mon, 3 Sep 2018 08:19:32 -0400 typed in rec.crafts.metalworking the following: The questions the customer didn't know enough to ask tend to be the hardest to solve, and the reasons there wasn't a simple solution already. -jsw Over thinking, again. Coordinating the movements is handled by Calvin & Hobbes Consolidated. I think they have the late model sonic transducers for that. But the load on the bot swarm, that I have to consider. Hell, if you have C&HC there, just use their discombobulators to exit it stage left, then the recombobulators to resolidify at the new site. No calcs necessary. But where's the fun in that? Besides, this is rec.crafts.metalworking, not rec.crafts.discombobulators __o-o-o-r_ rec.crafts.transmorgifyers. (I'm partial to Transmorgifyers, myself.) -- pyotr filipivich "With Age comes Wisdom. Although far too often, Age travels alone." |
determining the load on a corner "post"
Larry Jaques on Mon, 03 Sep 2018
22:08:43 -0700 typed in rec.crafts.metalworking the following: On Sun, 02 Sep 2018 13:35:26 -0700, pyotr filipivich wrote: I may have asked this before, but I have A Project in mind. This is much simpler than the last time, when I wanted to build 4 humanoid robots to pick up a shipping container at the corners and move it. "Hup, hup, hup, ... detail halt!" What I want to do this time is to just "slide an I-beam under the outbuilding, attach a wheeled unit to each end, pivot the building and roll it to when I want it." No doubt "A simple procedure involving lasers." I'm sure. Somewhere. But, my question is: load capacity of the units. Assume a GW of 3 tons, does that meant that each wheeled unit has to be able to 'carry' a three ton load, or can I divide the gross weight by 4, add a "fudge factor" and hope for the best? This is one of those things I'd talk to one of the old guys, but I find I am one of the old guys. Of course, some numb nut will overload a corner or end (unless you're the owner) VBG Check these out. I'm sure you'll come up with something interesting. https://www.youtube.com/watch?v=hgWYesO-FkA Axles https://www.youtube.com/watch?v=EzG_DzCeBt0 Mule https://www.youtube.com/watch?v=CrUw9-m_pSA Power dolly https://www.youtube.com/watch?v=KecvLYEL10g Another dolly https://www.youtube.com/watch?v=g1Do8ygIlfA Airplane tug Last, a Pods setup at 1:34: https://www.youtube.com/watch?v=Q9upzzIgm_c That's the closest to the container trucks at the Port. https://www.youtube.com/watch?v=TYNBTnOJzj0 small version of this Let us know what you come up with, Pete. I can draw the parts I doodled most of this out in meetings ("I-beam, end goes into socket in Lifting Unit, bolts both together. Lifting Unit raises I-beam up by [bottle jack | screw jack | cam | "other"] powered by [electric | steam | pneumatics | Hydraulics | magic]. Ground contact can be via large wheels, fat wheels, caterpillar tread, "feet". Each has advantages /drawbacks. Each beam has one Lifting Unit at each end, so: Four beams, and four Lifting Units (pat pending). Rotate shed, move to new location, lower in place. (¿ ... can I get concrete railroad ties 10 feet long?) Unbolt I-beams, lather rinse repeat with the next larger outbuilding. Store I-beams and Lifting Units for "later". -- pyotr filipivich "With Age comes Wisdom. Although far too often, Age travels alone." |
determining the load on a corner "post"
On Tuesday, September 4, 2018 at 12:15:49 PM UTC-4, pyotr filipivich wrote:
I can draw the parts I doodled most of this out in meetings ("I-beam, end goes into socket in Lifting Unit, bolts both together. Lifting Unit raises I-beam up by [bottle jack | screw jack | cam | "other"] powered by [electric | steam | pneumatics | Hydraulics | magic]. Ground contact can be via large wheels, fat wheels, caterpillar tread, "feet". Each has advantages /drawbacks. Each beam has one Lifting Unit at each end, so: Four beams, and four Lifting Units (pat pending). Rotate shed, move to new location, lower in place. (ż ... can I get concrete railroad ties 10 feet long?) Unbolt I-beams, lather rinse repeat with the next larger outbuilding. Store I-beams and Lifting Units for "later". -- pyotr filipivich "With Age comes Wisdom. Although far too often, Age travels alone." You might think about using blocks of ICE for the ground contact. It would reduce the force needed to move the buildings and would melt to lower it in place. Dan |
determining the load on a corner "post"
"pyotr filipivich" wrote in message
... Lifting Unit raises I-beam up by [bottle jack | screw jack | cam | "other"] powered by [electric | steam | pneumatics | Hydraulics | magic]. My Lifting Units are tripods of pipe or tubing that support chain hoists. The legs are joined at the top by a simple yet clever flexible arrangement of bolts and chains I devised 20 years ago that leaves the legs free to move around and divides the load between both sides of each leg, I think, in a manner that lets K=1 in the column equation. Likewise the pipes rest on actual balls or their near equivalents to keep the axis of thrust centered within the tube. https://en.wikipedia.org/wiki/Euler%27s_critical_load If I could prove the design's weight bearing capacity I'd reveal it, but I can't so you hereby know that a very simple folding pipe tripod is possible. All parts are common consumer hardware though they aren't necessarily used as intended. The load rating can be determined with on-line column calculators. I proof test them with a load cell when pulling stumps, which won't drop if anything fails. So far only one 5000 lb load cell has failed, and two legs and bottom ends were retired for their battered conditions. They move loads horizontally by walking the legs forward while the load is lowered, then raising it enough to slide. It's slow but requires only relatively level ground solid enough to support the leg baseplates. |
determining the load on a corner "post"
On Tue, 04 Sep 2018 09:16:03 -0700, pyotr filipivich
wrote: Larry Jaques on Mon, 03 Sep 2018 22:08:43 -0700 typed in rec.crafts.metalworking the following: On Sun, 02 Sep 2018 13:35:26 -0700, pyotr filipivich wrote: I may have asked this before, but I have A Project in mind. This is much simpler than the last time, when I wanted to build 4 humanoid robots to pick up a shipping container at the corners and move it. "Hup, hup, hup, ... detail halt!" What I want to do this time is to just "slide an I-beam under the outbuilding, attach a wheeled unit to each end, pivot the building and roll it to when I want it." No doubt "A simple procedure involving lasers." I'm sure. Somewhere. But, my question is: load capacity of the units. Assume a GW of 3 tons, does that meant that each wheeled unit has to be able to 'carry' a three ton load, or can I divide the gross weight by 4, add a "fudge factor" and hope for the best? This is one of those things I'd talk to one of the old guys, but I find I am one of the old guys. Of course, some numb nut will overload a corner or end (unless you're the owner) VBG Check these out. I'm sure you'll come up with something interesting. https://www.youtube.com/watch?v=hgWYesO-FkA Axles https://www.youtube.com/watch?v=EzG_DzCeBt0 Mule https://www.youtube.com/watch?v=CrUw9-m_pSA Power dolly https://www.youtube.com/watch?v=KecvLYEL10g Another dolly https://www.youtube.com/watch?v=g1Do8ygIlfA Airplane tug Last, a Pods setup at 1:34: https://www.youtube.com/watch?v=Q9upzzIgm_c That's the closest to the container trucks at the Port. https://www.youtube.com/watch?v=TYNBTnOJzj0 small version of this Let us know what you come up with, Pete. I can draw the parts I doodled most of this out in meetings ("I-beam, end goes into socket in Lifting Unit, bolts both together. Lifting Unit raises I-beam up by [bottle jack | screw jack | cam | "other"] powered by [electric | steam | pneumatics | Hydraulics | magic]. Ground contact can be via large wheels, fat wheels, caterpillar tread, "feet". Each has advantages /drawbacks. Each beam has one Lifting Unit at each end, so: Four beams, and four Lifting Units (pat pending). Rotate shed, move to new location, lower in place. (¿ ... can I get concrete railroad ties 10 feet long?) Unbolt I-beams, lather rinse repeat with the next larger outbuilding. Store I-beams and Lifting Units for "later". What? All you have is a napkin at this point? Sheesh... -- America rose from abnormal origins. The nation didn't grow organ- ically or gradually from indigenous tribes--like, say, the French or the Poles--but emerged out of courageous, conscious acts of will by Pilgrims and Patriots. --Michael Medved, Right Turns |
determining the load on a corner "post"
On Tue, 04 Sep 2018 09:16:03 -0700, pyotr filipivich
wrote: Larry Jaques on Tue, 04 Sep 2018 07:32:04 -0700 typed in rec.crafts.metalworking the following: On Sun, 02 Sep 2018 18:43:38 -0700, pyotr filipivich wrote: Gunner Asch on Sun, 02 Sep 2018 15:03:32 -0700 typed in rec.crafts.metalworking the following: On Sun, 02 Sep 2018 13:35:26 -0700, pyotr filipivich wrote: Once the preliminaries are done, then Ill be scaling down to move my footlockers around. (I had this idea for a camp setup, using a 20' shipping container as a base, and outfitting the Clanks with appropriate livery, depending on if I'm reenacting medieval or Steampunk. But that's a digression.) Clanks? Which def? https://www.urbandictionary.com/define.php?term=Clank "... clanks (impossibly advanced steampunk robots), dirigibles and walking gunboats of the world there are constructs – biological creations which range from Frankenstein-style creatures to talking cats and mouse-sized mammoths." https://en.wikipedia.org/wiki/Girl_Genius Oh, THOSE clanks. Got it. Loved the films Hugo, The Golden Compass, Van Helsing, The League of Extraordinary Gentlemen, and Sherlock Holmes for their Steampunk. What I'd really like to know is: how do I calculate the load bearing capacity needed by the robot which is going to pick up the corner. Why calculate when you could overengineer the things so they could heft the large buildings onto a single corner with one hand? Compete with Optimus Prime. (He'd have the calcs handy, but go with 25T.) Going out on a limb, I'm guessing you can rule out pneumatics here. Changing approaches, decided I can't just roll any of this over the Missus's Daisys, so I want to use a couple Rocs. Maybe some griffins. Now I all need to know what the tension on the straps to the harness will be. I strongly recommend dragons over those silly animals. another plus is that you can have them clear/sterilize the setdown area in seconds. Well, if you properly shield things nearby. Got scales? And where I can lay my hands on a couple environmentally friendly and sustainably sourced elephant carcases, but that's getting off track. What on Earth for? -- America rose from abnormal origins. The nation didn't grow organ- ically or gradually from indigenous tribes--like, say, the French or the Poles--but emerged out of courageous, conscious acts of will by Pilgrims and Patriots. --Michael Medved, Right Turns |
determining the load on a corner "post"
On Tue, 04 Sep 2018 09:16:03 -0700, pyotr filipivich
wrote: Larry Jaques on Mon, 03 Sep 2018 22:08:43 -0700 typed in rec.crafts.metalworking the following: On Sun, 02 Sep 2018 13:35:26 -0700, pyotr filipivich wrote: I may have asked this before, but I have A Project in mind. This is much simpler than the last time, when I wanted to build 4 humanoid robots to pick up a shipping container at the corners and move it. "Hup, hup, hup, ... detail halt!" What I want to do this time is to just "slide an I-beam under the outbuilding, attach a wheeled unit to each end, pivot the building and roll it to when I want it." No doubt "A simple procedure involving lasers." I'm sure. Somewhere. But, my question is: load capacity of the units. Assume a GW of 3 tons, does that meant that each wheeled unit has to be able to 'carry' a three ton load, or can I divide the gross weight by 4, add a "fudge factor" and hope for the best? This is one of those things I'd talk to one of the old guys, but I find I am one of the old guys. Of course, some numb nut will overload a corner or end (unless you're the owner) VBG Check these out. I'm sure you'll come up with something interesting. https://www.youtube.com/watch?v=hgWYesO-FkA Axles https://www.youtube.com/watch?v=EzG_DzCeBt0 Mule https://www.youtube.com/watch?v=CrUw9-m_pSA Power dolly https://www.youtube.com/watch?v=KecvLYEL10g Another dolly https://www.youtube.com/watch?v=g1Do8ygIlfA Airplane tug Last, a Pods setup at 1:34: https://www.youtube.com/watch?v=Q9upzzIgm_c That's the closest to the container trucks at the Port. https://www.youtube.com/watch?v=TYNBTnOJzj0 small version of this Let us know what you come up with, Pete. I can draw the parts I doodled most of this out in meetings ("I-beam, end goes into socket in Lifting Unit, bolts both together. Lifting Unit raises I-beam up by [bottle jack | screw jack | cam | "other"] powered by [electric | steam | pneumatics | Hydraulics | magic]. Ground contact can be via large wheels, fat wheels, caterpillar tread, "feet". Each has advantages /drawbacks. Each beam has one Lifting Unit at each end, so: Four beams, and four Lifting Units (pat pending). Rotate shed, move to new location, lower in place. (¿ ... can I get concrete railroad ties 10 feet long?) Unbolt I-beams, lather rinse repeat with the next larger outbuilding. Store I-beams and Lifting Units for "later". -- pyotr filipivich "With Age comes Wisdom. Although far too often, Age travels alone." I built my first shed for moving, 8' x 20', on skids of 3 2x8's nailed together with 20p nails, crossmembers the same, cross braced with 3/8" cable to eye bolts through the corners. When it came time to move it, I disconnected the power, then tugged on one end while pivoting it around the huge sycamore it was behind, then winched it onto Dad's truck with the lift bed and winch. Drove about 15 miles, then dropped it at my new house. Jacked, leveled on blocks, and ran the new electric. There was no sheetrock, so no sign of damage at all. Pete Keillor |
determining the load on a corner "post"
On Tuesday, September 4, 2018 at 11:08:33 PM UTC-4, Jim Wilkins wrote:
"pyotr filipivich" wrote in message ... Lifting Unit raises I-beam up by [bottle jack | screw jack | cam | "other"] powered by [electric | steam | pneumatics | Hydraulics | magic]. My Lifting Units are tripods of pipe or tubing that support chain hoists. The legs are joined at the top by a simple yet clever flexible arrangement of bolts and chains I devised 20 years ago that leaves the legs free to move around and divides the load between both sides of each leg, I think, in a manner that lets K=1 in the column equation. Likewise the pipes rest on actual balls or their near equivalents to keep the axis of thrust centered within the tube. https://en.wi "kipedia.org/wiki/Euler%27s_critical_load If I could prove the design's weight bearing capacity I'd reveal it, but I can't so you hereby know that a very simple folding pipe tripod is possible. All parts are common consumer hardware though they aren't necessarily used as intended. The load rating can be determined with on-line column calculators. I proof test them with a load cell when pulling stumps, which won't drop if anything fails. So far only one 5000 lb load cell has failed, and two legs and bottom ends were retired for their battered conditions. They move loads horizontally by walking the legs forward while the load is lowered, then raising it enough to slide. It's slow but requires only relatively level ground solid enough to support the leg baseplates. I would enjoy seeing your lifting tripods. I made something similar, but the top was three sockets made of pipe welded to a plate. Worked well enoug to lift a small horizontal mill off a trailer. Dan |
determining the load on a corner "post"
Larry Jaques on Tue, 04 Sep 2018
22:24:52 -0700 typed in rec.crafts.metalworking the following: Changing approaches, decided I can't just roll any of this over the Missus's Daisys, so I want to use a couple Rocs. Maybe some griffins. Now I all need to know what the tension on the straps to the harness will be. I strongly recommend dragons over those silly animals. another plus is that you can have them clear/sterilize the setdown area in seconds. Well, if you properly shield things nearby. Got scales? And where I can lay my hands on a couple environmentally friendly and sustainably sourced elephant carcases, but that's getting off track. What on Earth for? Feeding the Rocs, of course. -- pyotr filipivich "With Age comes Wisdom. Although far too often, Age travels alone." |
determining the load on a corner "post"
"Jim Wilkins" on Tue, 4 Sep 2018 23:09:41 -0400
typed in rec.crafts.metalworking the following: "pyotr filipivich" wrote in message .. . Lifting Unit raises I-beam up by [bottle jack | screw jack | cam | "other"] powered by [electric | steam | pneumatics | Hydraulics | magic]. My Lifting Units are tripods of pipe or tubing that support chain oooh - Tripods! Martian Walkers! Yes, of course, Pinky, are you pondering what I'm pondering? I think so brain, but were are we going to get a team of trained Hippos in tutus? tschus pyotr no, really, a good idea, too. -- pyotr filipivich "With Age comes Wisdom. Although far too often, Age travels alone." |
determining the load on a corner "post"
Larry Jaques on Tue, 04 Sep 2018
22:15:55 -0700 typed in rec.crafts.metalworking the following: On Tue, 04 Sep 2018 09:16:03 -0700, pyotr filipivich wrote: Larry Jaques on Mon, 03 Sep 2018 22:08:43 -0700 typed in rec.crafts.metalworking the following: On Sun, 02 Sep 2018 13:35:26 -0700, pyotr filipivich wrote: I may have asked this before, but I have A Project in mind. This is much simpler than the last time, when I wanted to build 4 humanoid robots to pick up a shipping container at the corners and move it. "Hup, hup, hup, ... detail halt!" What I want to do this time is to just "slide an I-beam under the outbuilding, attach a wheeled unit to each end, pivot the building and roll it to when I want it." No doubt "A simple procedure involving lasers." I'm sure. Somewhere. But, my question is: load capacity of the units. Assume a GW of 3 tons, does that meant that each wheeled unit has to be able to 'carry' a three ton load, or can I divide the gross weight by 4, add a "fudge factor" and hope for the best? This is one of those things I'd talk to one of the old guys, but I find I am one of the old guys. Of course, some numb nut will overload a corner or end (unless you're the owner) VBG Check these out. I'm sure you'll come up with something interesting. https://www.youtube.com/watch?v=hgWYesO-FkA Axles https://www.youtube.com/watch?v=EzG_DzCeBt0 Mule https://www.youtube.com/watch?v=CrUw9-m_pSA Power dolly https://www.youtube.com/watch?v=KecvLYEL10g Another dolly https://www.youtube.com/watch?v=g1Do8ygIlfA Airplane tug Last, a Pods setup at 1:34: https://www.youtube.com/watch?v=Q9upzzIgm_c That's the closest to the container trucks at the Port. https://www.youtube.com/watch?v=TYNBTnOJzj0 small version of this Let us know what you come up with, Pete. I can draw the parts I doodled most of this out in meetings ("I-beam, end goes into socket in Lifting Unit, bolts both together. Lifting Unit raises I-beam up by [bottle jack | screw jack | cam | "other"] powered by [electric | steam | pneumatics | Hydraulics | magic]. Ground contact can be via large wheels, fat wheels, caterpillar tread, "feet". Each has advantages /drawbacks. Each beam has one Lifting Unit at each end, so: Four beams, and four Lifting Units (pat pending). Rotate shed, move to new location, lower in place. (¿ ... can I get concrete railroad ties 10 feet long?) Unbolt I-beams, lather rinse repeat with the next larger outbuilding. Store I-beams and Lifting Units for "later". What? All you have is a napkin at this point? Sheesh... Actually, some very nice drawings ... but yeah. -- pyotr filipivich "With Age comes Wisdom. Although far too often, Age travels alone." |
determining the load on a corner "post"
Pete Keillor on Wed, 05 Sep 2018 07:31:54
-0500 typed in rec.crafts.metalworking the following: On Tue, 04 Sep 2018 09:16:03 -0700, pyotr filipivich wrote: Larry Jaques on Mon, 03 Sep 2018 22:08:43 -0700 typed in rec.crafts.metalworking the following: On Sun, 02 Sep 2018 13:35:26 -0700, pyotr filipivich wrote: I may have asked this before, but I have A Project in mind. This is much simpler than the last time, when I wanted to build 4 humanoid robots to pick up a shipping container at the corners and move it. "Hup, hup, hup, ... detail halt!" What I want to do this time is to just "slide an I-beam under the outbuilding, attach a wheeled unit to each end, pivot the building and roll it to when I want it." No doubt "A simple procedure involving lasers." I'm sure. Somewhere. But, my question is: load capacity of the units. Assume a GW of 3 tons, does that meant that each wheeled unit has to be able to 'carry' a three ton load, or can I divide the gross weight by 4, add a "fudge factor" and hope for the best? This is one of those things I'd talk to one of the old guys, but I find I am one of the old guys. Of course, some numb nut will overload a corner or end (unless you're the owner) VBG Check these out. I'm sure you'll come up with something interesting. https://www.youtube.com/watch?v=hgWYesO-FkA Axles https://www.youtube.com/watch?v=EzG_DzCeBt0 Mule https://www.youtube.com/watch?v=CrUw9-m_pSA Power dolly https://www.youtube.com/watch?v=KecvLYEL10g Another dolly https://www.youtube.com/watch?v=g1Do8ygIlfA Airplane tug Last, a Pods setup at 1:34: https://www.youtube.com/watch?v=Q9upzzIgm_c That's the closest to the container trucks at the Port. https://www.youtube.com/watch?v=TYNBTnOJzj0 small version of this Let us know what you come up with, Pete. I can draw the parts I doodled most of this out in meetings ("I-beam, end goes into socket in Lifting Unit, bolts both together. Lifting Unit raises I-beam up by [bottle jack | screw jack | cam | "other"] powered by [electric | steam | pneumatics | Hydraulics | magic]. Ground contact can be via large wheels, fat wheels, caterpillar tread, "feet". Each has advantages /drawbacks. Each beam has one Lifting Unit at each end, so: Four beams, and four Lifting Units (pat pending). Rotate shed, move to new location, lower in place. (¿ ... can I get concrete railroad ties 10 feet long?) Unbolt I-beams, lather rinse repeat with the next larger outbuilding. Store I-beams and Lifting Units for "later". -- pyotr filipivich "With Age comes Wisdom. Although far too often, Age travels alone." I built my first shed for moving, 8' x 20', on skids of 3 2x8's nailed together with 20p nails, crossmembers the same, cross braced with 3/8" cable to eye bolts through the corners. The Shop is in a store bought shed, the Shed is rebuilt. I'm not so sure about stability of them in a lifting scenario. the Shop is probably good, the shed I have less confident in (I built it, and know the corners I took.) When it came time to move it, I disconnected the power, then tugged on one end while pivoting it around the huge sycamore it was behind, then winched it onto Dad's truck with the lift bed and winch. Drove about 15 miles, then dropped it at my new house. Jacked, leveled on blocks, and ran the new electric. There was no sheetrock, so no sign of damage at all. I've a friend who says "Oh, just let me know, I can bring the tractor ...". Not sure that's a good idea, or that we can get it into the space available. OTOH, there are come-alongs and cable/chain. Set a couple three anchors and "Bob's yer uncle" or I'll have new beds plowed for gardening. -- pyotr filipivich "With Age comes Wisdom. Although far too often, Age travels alone." |
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