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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
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Laser guide for press brake in DropBox
I added a laser guide to my press brake:
http://www.metalworking.com/dropbox/LaserGuide.pdf Please excuse the on topic post. Bob |
#2
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Laser guide for press brake in DropBox
"Bob Engelhardt" wrote in message ... I added a laser guide to my press brake: http://www.metalworking.com/dropbox/LaserGuide.pdf Please excuse the on topic post. Bob Thats neat - I like the pdf presentation too. |
#3
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Laser guide for press brake in DropBox
On Wed, 13 Jan 2010 22:32:27 -0500, Bob Engelhardt
wrote: I added a laser guide to my press brake: http://www.metalworking.com/dropbox/LaserGuide.pdf Please excuse the on topic post. Bob Cool! |
#4
Posted to rec.crafts.metalworking
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Laser guide for press brake in DropBox
On 2010-01-14, Bob Engelhardt wrote:
I added a laser guide to my press brake: http://www.metalworking.com/dropbox/LaserGuide.pdf A neat idea. Note that there are tiny cartridges available with the laser diode and the line generator (which appears to simply be some small round glass rods stacked side by side. This is present both in the one which I have, and in the slide-on line generator in my laser level. It should be possible to make one for use with a laser pointer. The cartridge has the advantage of a lot less hanging out to be damaged -- and easier to build a protective housing around in any case. The search used below was for "laser line generator". For an example of the cartridge, take a look at eBay auction #150378954644 (green line). #180453928361 gives you a red line -- but way too much power, I think (90-100 mW). It is in China, FWIW, while the green one is in California. And here is one like what I have -- at 5 mW it is noticeably safer. They are asking $15.00 for buy-it-now. #360166294361 Please excuse the on topic post. I think that we'll excuse it -- this time. :-) Enjoy, DoN. -- Email: | Voice (all times): (703) 938-4564 (too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html --- Black Holes are where God is dividing by zero --- |
#5
Posted to rec.crafts.metalworking
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Laser guide for press brake in DropBox
"DoN. Nichols" wrote in message ... On 2010-01-14, Bob Engelhardt wrote: I added a laser guide to my press brake: http://www.metalworking.com/dropbox/LaserGuide.pdf A neat idea. Note that there are tiny cartridges available with the laser diode and the line generator (which appears to simply be some small round glass rods stacked side by side. This is present both in the one which I have, and in the slide-on line generator in my laser level. It should be possible to make one for use with a laser pointer. The cartridge has the advantage of a lot less hanging out to be damaged -- and easier to build a protective housing around in any case. The search used below was for "laser line generator". For an example of the cartridge, take a look at eBay auction #150378954644 (green line). #180453928361 gives you a red line -- but way too much power, I think (90-100 mW). It is in China, FWIW, while the green one is in California. And here is one like what I have -- at 5 mW it is noticeably safer. They are asking $15.00 for buy-it-now. #360166294361 Please excuse the on topic post. I think that we'll excuse it -- this time. :-) Enjoy, DoN. -- Email: | Voice (all times): (703) 938-4564 (too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html --- Black Holes are where God is dividing by zero --- Interesting, so looking from the side the line generators are like this? oooo CIRCULAR BEAM oooo OOOOO --- LINE OUT ------ ^^^^^ Row of n rod lenses |
#6
Posted to rec.crafts.metalworking
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Laser guide for press brake in DropBox
On Jan 13, 10:32*pm, Bob Engelhardt wrote:
I added a laser guide to my press brake:http://www.metalworking.com/dropbox/LaserGuide.pdf Please excuse the on topic post. Bob Isn't there a law against adding a laser to a harbor-freight product Is that the A-frame 20-ton press? I bought that one for doing subaru wheel bearings. I'm glad I got the 20. Dave |
#7
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Laser guide for press brake in DropBox
"Bob Engelhardt" wrote in message ... I added a laser guide to my press brake: http://www.metalworking.com/dropbox/LaserGuide.pdf Please excuse the on topic post. Bob !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Now this is why I read RCM. Here's an idea I need and hadn't thought of. KISS and does the job. Thanks Karl |
#8
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Laser guide for press brake in DropBox
Royston Vasey wrote:
(...) Interesting, so looking from the side the line generators are like this? oooo CIRCULAR BEAM oooo OOOOO --- LINE OUT ------ ^^^^^ Row of n rod lenses Have a look at the single acrylic rod in the second illustration of: http://hacknmod.com/hack/3d-scanner-make-your-own/ As noted elsewhere, the line width appears much wider in the photo than it is in actuality because of the long exposure times necessary to photograph without a flash. --Winston -- Machining can only occur between one Catholic and one Bridgeport. Other people and machines can continue to enjoy their hobby within a Mechanical Partnership but to protect our fine tradition, they must be prevented from actually Machining. To grant them the ability to Machine would ruin this traditional institution for Catholics, Bridgeports and everyone and everything else. Do we think that a Unitarian and her Deckel has any valid claim to the freedom and sanctity of Machining? Of course not! We cannot risk validating this gravely unjust pairing; to recognize it would send the wrong message to our precious youth. Who knows how many young lives have been utterly ruined because of the non-procreative destruction of perfectly acceptable surfaces by non-Catholics using non-Bridgeports? No other form can be considered as an equivalent to this natural relationship between a Catholic and a Bridgeport out of whose love tools are born. Join me to protect the unique social and legal status of Machining for everyone in the 21st century! |
#9
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Laser guide for press brake in DropBox
On Jan 13, 10:32*pm, Bob Engelhardt wrote:
I added a laser guide to my press brake:http://www.metalworking.com/dropbox/LaserGuide.pdf Please excuse the on topic post. Bob That's a good idea and nicely done. It would be less practical on a 30" shear/brake/roll because the handle is hard to reach from the far end. I add marks offset 9mm (or 3/8") from the bend and align them with the edge of the lower die. That's plenty accurate for the usual job, like the roof snow rake I just made, which skates over the raised screw heads on a corrugated roof. The back gage stops it came with don't work well. I replaced the rods with 12mm shafts threaded a loose 1/2-13 so nuts spin freely on them and coast a ways. The rods are shorter to decrease the space the machine takes up. The longer originals still work. Here's a way to make quick-release nuts with a custom thread pitch: http://picasaweb.google.com/KB1DAL/T...03579451053314 http://picasaweb.google.com/KB1DAL/T...03580026966178 You can clamp the two halves firmly together in the mill vise to tap the threads. The Bridgeport style of pushbutton sliding nut should be easy to make, but as you can see doesn't fit a Clausing jsw |
#10
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Laser guide for press brake in DropBox
On Jan 14, 8:39*am, Jim Wilkins wrote:
On Jan 13, 10:32*pm, Bob Engelhardt wrote: I added a laser guide to my press brake:http://www.metalworking.com/dropbox/LaserGuide.pdf Please excuse the on topic post. Bob That's a good idea and nicely done. It would be less practical on a 30" shear/brake/roll because the handle is hard to reach from the far end. I add marks offset 9mm (or 3/8") from the bend and align them with the edge of the lower die. That's plenty accurate for the usual job, like the roof snow rake I just made, which skates over the raised screw heads on a corrugated roof. The back gage stops it came with don't work well. I replaced the rods with 12mm shafts threaded a loose 1/2-13 so nuts spin freely on them and coast a ways. The rods are shorter to decrease the space the machine takes up. The longer originals still work. Here's a way to make quick-release nuts with a custom thread pitch:http://picasaweb.google.com/KB1DAL/T...03580026966178 You can clamp the two halves firmly together in the mill vise to tap the threads. The Bridgeport style of pushbutton sliding nut should be easy to make, but as you can see doesn't fit a Clausing jsw I like your flare nut wrench: http://picasaweb.google.com/KB1DAL/T...55378162487314 |
#11
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Laser guide for press brake in DropBox
"Denis G." wrote in message ... On Jan 14, 8:39 am, Jim Wilkins wrote: On Jan 13, 10:32 pm, Bob Engelhardt wrote: I added a laser guide to my press brake:http://www.metalworking.com/dropbox/LaserGuide.pdf Please excuse the on topic post. Bob That's a good idea and nicely done. It would be less practical on a 30" shear/brake/roll because the handle is hard to reach from the far end. I add marks offset 9mm (or 3/8") from the bend and align them with the edge of the lower die. That's plenty accurate for the usual job, like the roof snow rake I just made, which skates over the raised screw heads on a corrugated roof. The back gage stops it came with don't work well. I replaced the rods with 12mm shafts threaded a loose 1/2-13 so nuts spin freely on them and coast a ways. The rods are shorter to decrease the space the machine takes up. The longer originals still work. Here's a way to make quick-release nuts with a custom thread pitch:http://picasaweb.google.com/KB1DAL/T...03580026966178 You can clamp the two halves firmly together in the mill vise to tap the threads. The Bridgeport style of pushbutton sliding nut should be easy to make, but as you can see doesn't fit a Clausing jsw I like your flare nut wrench: http://picasaweb.google.com/KB1DAL/T...55378162487314 Yeah, Jim makes some pretty cool things, too...check out the bucket attachment! |
#12
Posted to rec.crafts.metalworking
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Laser guide for press brake in DropBox
"Bob Engelhardt" wrote in message ... I added a laser guide to my press brake: http://www.metalworking.com/dropbox/LaserGuide.pdf Please excuse the on topic post. Bob Very nice, Bob.. |
#13
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Laser guide for press brake in DropBox
On Jan 14, 11:54*am, "Rick" wrote:
"Denis G." wrote in message .. I like your flare nut wrench:http://picasaweb.google.com/KB1DAL/T...55378162487314 Yeah, Jim makes some pretty cool things, too...check out the bucket attachment!- Thanks. Now if I could only keep everything working..... jsw |
#14
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Laser guide for press brake in DropBox
On Jan 14, 11:10*am, Jim Wilkins wrote:
On Jan 14, 11:54*am, "Rick" wrote: "Denis G." wrote in message .. I like your flare nut wrench:http://picasaweb.google.com/KB1DAL/T...55378162487314 Yeah, Jim makes some pretty cool things, too...check out the bucket attachment!- Thanks. Now if I could only keep everything working..... jsw I recently replaced two brake lines on an 83 Ford van so that tool might have come in handy. Usually I use vise grips if the nut is really bad and then I have to replace it. I might copy your wrench or maybe modify some vise grips to have a hex holder. Many times you're also constrained by space to get a good hold of the nut. |
#15
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Laser guide for press brake in DropBox
On Jan 14, 1:35*pm, "Denis G." wrote:
.... I recently replaced two brake lines on an 83 Ford van so that tool might have come in handy. *Usually I use vise grips if the nut is really bad and then I have to replace it. *I might copy your wrench or maybe modify some vise grips to have a hex holder. *Many times you're also constrained by space to get a good hold of the nut. If you don't need to save the brake line just cut it off short and use a 6 point socket. I had to make the wrench after distorting the flare nut too much to get anything else onto it. jsw |
#16
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Laser guide for press brake in DropBox
Dave__67 wrote:
Is that the A-frame 20-ton press? I bought that one for doing subaru wheel bearings. Mine is the H-frame, not for any particular reason. Probably because it was on sale. I'm glad I got the 20. Me too. I have bent a 20" piece of 14 ga & it took using a 3' piece of pipe as a pump lever. No way would I have done on less than 20 T. Bob |
#17
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Laser guide for press brake in DropBox
On 2010-01-14, Royston Vasey wrote:
"DoN. Nichols" wrote in message ... On 2010-01-14, Bob Engelhardt wrote: I added a laser guide to my press brake: http://www.metalworking.com/dropbox/LaserGuide.pdf A neat idea. Note that there are tiny cartridges available with the laser diode and the line generator (which appears to simply be some small round glass rods stacked side by side. This is present both in the one which I have, and in the slide-on line generator in my laser level. It should be possible to make one for use with a laser pointer. [ ... ] Interesting, so looking from the side the line generators are like this? oooo CIRCULAR BEAM oooo OOOOO --- LINE OUT ------ ^^^^^ Row of n rod lenses Nope -- more like this: O O oooo CIRCULAR BEAM oooo O --- LINE OUT ------ O O It doesn't seem to matter just where the beam hits the plane of rods. And I've seen some which have a second plane of rods at right angles to the first one (not overlapping) to produce a cross-hair. Sort of like this (laser's view, not side view like the above): ===| || | ====| || || =====| || || | ====| || || ===| || | Rod ends cut to form a rough circle for fitting into the holder. Enjoy, DoN. -- Email: | Voice (all times): (703) 938-4564 (too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html --- Black Holes are where God is dividing by zero --- |
#18
Posted to rec.crafts.metalworking
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Laser guide for press brake in DropBox
"DoN. Nichols" wrote in message ... On 2010-01-14, Royston Vasey wrote: "DoN. Nichols" wrote in message ... On 2010-01-14, Bob Engelhardt wrote: I added a laser guide to my press brake: http://www.metalworking.com/dropbox/LaserGuide.pdf A neat idea. Note that there are tiny cartridges available with the laser diode and the line generator (which appears to simply be some small round glass rods stacked side by side. This is present both in the one which I have, and in the slide-on line generator in my laser level. It should be possible to make one for use with a laser pointer. [ ... ] Interesting, so looking from the side the line generators are like this? oooo CIRCULAR BEAM oooo OOOOO --- LINE OUT ------ ^^^^^ Row of n rod lenses Nope -- more like this: O O oooo CIRCULAR BEAM oooo O --- LINE OUT ------ O O It doesn't seem to matter just where the beam hits the plane of rods. And I've seen some which have a second plane of rods at right angles to the first one (not overlapping) to produce a cross-hair. Sort of like this (laser's view, not side view like the above): ===| || | ====| || || =====| || || | ====| || || ===| || | Rod ends cut to form a rough circle for fitting into the holder. Enjoy, DoN. -- Email: | Voice (all times): (703) 938-4564 (too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html --- Black Holes are where God is dividing by zero --- Thanks Don (& Winston), neat, there's lots of interesting stuff to learn hey! |
#19
Posted to rec.crafts.metalworking
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Laser guide for press brake in DropBox
If the brake line needs to be cut off to get the line nut free, and a
6-point socket doesn't work, an Irwin extractor socket will very likely get the line nut out. http://www.irwin.com/irwin/consumer/...rwinProd100512 -- WB .......... metalworking projects www.kwagmire.com/metal_proj.html "Jim Wilkins" wrote in message ... On Jan 14, 1:35 pm, "Denis G." wrote: .... I recently replaced two brake lines on an 83 Ford van so that tool might have come in handy. Usually I use vise grips if the nut is really bad and then I have to replace it. I might copy your wrench or maybe modify some vise grips to have a hex holder. Many times you're also constrained by space to get a good hold of the nut. If you don't need to save the brake line just cut it off short and use a 6 point socket. I had to make the wrench after distorting the flare nut too much to get anything else onto it. jsw |
#20
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Laser guide for press brake in DropBox
On Jan 15, 2:55*am, "Wild_Bill" wrote:
If the brake line needs to be cut off to get the line nut free, and a 6-point socket doesn't work, an Irwin extractor socket will very likely get the line nut out. http://www.irwin.com/irwin/consumer/...prodId=IrwinPr.... -- WB Thanks, I hadn't seen those. Mine was slow to make but the 6-sided compression left the brake line fitting reuseable afterwards, though I replaced the line. I made another larger one to remove the hollow nut that connects the EGR tube to the exhaust manifold. jsw |
#21
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Laser guide for press brake in DropBox
Bob Engelhardt wrote:
I added a laser guide to my press brake: http://www.metalworking.com/dropbox/LaserGuide.pdf Please excuse the on topic post. Because you are a nice guy, we will let you off lightly this time. Nice! A while back I had a .62 underhammer that shot too far to the left or was it right. It looked terrible. Front site on one side of barrel, rear, on opposite side. We tried bending it by clamping the barrel over two blocks one near the muzzle and the other near the breach using a strap clamp to bend it in the middle. To gage what we were doing, we put a laser level on a flat pointing out the garage to a big sheet of cardboard across the yard. That way we could keep ratcheting up how much we bent it followed by relaxing it looking for a set. It didn't work, I was afraid we would pull the tee slot out of my bridgeport table before the barrel bent. Ended up clocking the barrel, plugging the dovetails for sights and cutting new dovetails 90 degrees rotated. Wes -- "Additionally as a security officer, I carry a gun to protect government officials but my life isn't worth protecting at home in their eyes." Dick Anthony Heller |
#22
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Laser guide for press brake in DropBox
On Jan 13, 9:32*pm, Bob Engelhardt wrote:
I added a laser guide to my pressbrake:http://www.metalworking.com/dropbox/LaserGuide.pdf Please excuse the on topic post. Bob ON TOPIC POST!?!?!?! ;) Good job. Do you have pictures of the dies you made for the press brake option you made for the press? We would love to see them. Thanks TMT |
#23
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Laser guide for press brake in DropBox
Too_Many_Tools wrote:
Do you have pictures of the dies you made for the press brake option you made for the press? ... I was going to do a small write up, but that might not happen, so here's a couple of pix that I posted before - gives you an idea. http://home.comcast.net/~bobengelhardt/brake1.jpg http://home.comcast.net/~bobengelhardt/brake2.jpg http://home.comcast.net/~bobengelhardt/PressDie.jpg Basically, I used what I had around. Spaco has a web page of his adaptation. Bob |
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