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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
Posted to rec.crafts.metalworking
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Made a Turner's cube
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#2
Posted to rec.crafts.metalworking
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Made a Turner's cube
"Ignoramus4120" wrote in message ... It is 2" in size. https://picasaweb.google.com/lh/phot...eat=directlink That is really, really cool. I also like the 'demo samples' the rapid prototyping guys have on their stands at exhibitions. Spheres within cubes within ellipsoids etc.... JB |
#3
Posted to rec.crafts.metalworking
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Made a Turner's cube
On 2011-03-19, JB wrote:
"Ignoramus4120" wrote in message ... It is 2" in size. https://picasaweb.google.com/lh/phot...eat=directlink That is really, really cool. I also like the 'demo samples' the rapid prototyping guys have on their stands at exhibitions. Spheres within cubes within ellipsoids etc.... I saw some cool examples too. The code to do it, is actually a recursive G code function (which is understandable, since the shapes are recursively nested). (Makes a turner's cube. See projects.txt for formulas). Oturners_cube sub #xc = #1 (X Center) #yc = #2 (Y Center) #z = #3 (Current Z) #size = #4 (Side) #milld = #5 (Mill Diameter) #k1 = #6 #k2 = #7 #R = [#k1 * #size/2] Oif if [ #R gt #milld] G0 X#xc Y#yc Owithdraw call [#z + 0.01] #d = [ [#x/2 - #R] + #k2*#R*[1 - 1/sqrt[ 2 ]]] Odeepcylindricalpocket call [#xc] [#yc] [#z + 0.01] [#z - #d] [#R] [#milld] #X1 = [#size - 2*#d] Oturners_cube call [#xc] [#yc] [#z - #d] [#X1] [#milld] [#k1] [#k2] Oif endif G0 X#xc Y#yc Owithdraw call [#z + 0.01] Oturners_cube endsub M2 |
#4
Posted to rec.crafts.metalworking
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Made a Turner's cube
Ignoramus4120 wrote: It is 2" in size. https://picasaweb.google.com/lh/phot...eat=directlink That's cute. Surely you can get out your tiny end mills and work it down a few more levels... |
#5
Posted to rec.crafts.metalworking
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Made a Turner's cube
On 2011-03-19, Pete C. wrote:
Ignoramus4120 wrote: It is 2" in size. https://picasaweb.google.com/lh/phot...eat=directlink That's cute. Surely you can get out your tiny end mills and work it down a few more levels... That's possible, but would add to the time expense. I was thinking, to try selling this stuff on ebay. My work involved here, is to open the vise six times and flip the cubes in the vise. i |
#6
Posted to rec.crafts.metalworking
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Made a Turner's cube
Ignoramus4120 wrote: On 2011-03-19, Pete C. wrote: Ignoramus4120 wrote: It is 2" in size. https://picasaweb.google.com/lh/phot...eat=directlink That's cute. Surely you can get out your tiny end mills and work it down a few more levels... That's possible, but would add to the time expense. I was thinking, to try selling this stuff on ebay. My work involved here, is to open the vise six times and flip the cubes in the vise. i Dude, you have a 4th axis, only two vise changes required. Load part and machine sides 1-4, stop, flip part and machine sides 5 and 6. |
#7
Posted to rec.crafts.metalworking
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Made a Turner's cube
"Pete C." wrote: Ignoramus4120 wrote: On 2011-03-19, Pete C. wrote: Ignoramus4120 wrote: It is 2" in size. https://picasaweb.google.com/lh/phot...eat=directlink That's cute. Surely you can get out your tiny end mills and work it down a few more levels... That's possible, but would add to the time expense. I was thinking, to try selling this stuff on ebay. My work involved here, is to open the vise six times and flip the cubes in the vise. i Dude, you have a 4th axis, only two vise changes required. Load part and machine sides 1-4, stop, flip part and machine sides 5 and 6. Add to that, probably use custom soft jaws in the small vice on the 4th axis in order to properly locate the part. Also probably machine in AL, polish in a tumbler and anodize for sale. |
#8
Posted to rec.crafts.metalworking
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Made a Turner's cube
On 2011-03-19, Pete C. wrote:
"Pete C." wrote: Ignoramus4120 wrote: On 2011-03-19, Pete C. wrote: Ignoramus4120 wrote: It is 2" in size. https://picasaweb.google.com/lh/phot...eat=directlink That's cute. Surely you can get out your tiny end mills and work it down a few more levels... That's possible, but would add to the time expense. I was thinking, to try selling this stuff on ebay. My work involved here, is to open the vise six times and flip the cubes in the vise. i Dude, you have a 4th axis, only two vise changes required. Load part and machine sides 1-4, stop, flip part and machine sides 5 and 6. Add to that, probably use custom soft jaws in the small vice on the 4th axis in order to properly locate the part. Also probably machine in AL, polish in a tumbler and anodize for sale. Oh, yes, I realize that I have a question. How can I make this cube beautiful, as in, remove manufacturers marks on the aluminum,. etc? Tumbling? In what? i |
#9
Posted to rec.crafts.metalworking
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Made a Turner's cube
On 2011-03-19, Pete C. wrote:
Ignoramus4120 wrote: On 2011-03-19, Pete C. wrote: Ignoramus4120 wrote: It is 2" in size. https://picasaweb.google.com/lh/phot...eat=directlink That's cute. Surely you can get out your tiny end mills and work it down a few more levels... That's possible, but would add to the time expense. I was thinking, to try selling this stuff on ebay. My work involved here, is to open the vise six times and flip the cubes in the vise. i Dude, you have a 4th axis, only two vise changes required. Load part and machine sides 1-4, stop, flip part and machine sides 5 and 6. I think that clamping this is to rotary table do difficult, that flipping the part over 6 times is easier. If I wanted to make quantities, I would machine three cubes at a time, setting three in a row in a vise. i |
#10
Posted to rec.crafts.metalworking
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Made a Turner's cube
If I wanted to make quantities, I would machine three cubes at a time, setting three in a row in a vise. FWIW, three is a vice is asking for trouble. One will be loose. Four in a vice - OK. multiple vices - OK. Karl |
#11
Posted to rec.crafts.metalworking
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Made a Turner's cube
Ignoramus4120 wrote: On 2011-03-19, Pete C. wrote: Ignoramus4120 wrote: On 2011-03-19, Pete C. wrote: Ignoramus4120 wrote: It is 2" in size. https://picasaweb.google.com/lh/phot...eat=directlink That's cute. Surely you can get out your tiny end mills and work it down a few more levels... That's possible, but would add to the time expense. I was thinking, to try selling this stuff on ebay. My work involved here, is to open the vise six times and flip the cubes in the vise. i Dude, you have a 4th axis, only two vise changes required. Load part and machine sides 1-4, stop, flip part and machine sides 5 and 6. I think that clamping this is to rotary table do difficult, that flipping the part over 6 times is easier. If I wanted to make quantities, I would machine three cubes at a time, setting three in a row in a vise. i Clamping on the RT shouldn't be that difficult really. If you want production, clearly you'll need to make a custom fixture to hold six or eight cubes, with air over hydraulic clamping, and a parts handling robot to flip the cubes around for you while you watch on the webcam from your office |
#12
Posted to rec.crafts.metalworking
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Made a Turner's cube
On 2011-03-19, Ignoramus4120 wrote:
On 2011-03-19, Pete C. wrote: Ignoramus4120 wrote: It is 2" in size. https://picasaweb.google.com/lh/phot...eat=directlink That's cute. Surely you can get out your tiny end mills and work it down a few more levels... That's possible, but would add to the time expense. It would also greatly add to the fixturing precision that is required. i I was thinking, to try selling this stuff on ebay. My work involved here, is to open the vise six times and flip the cubes in the vise. i |
#13
Posted to rec.crafts.metalworking
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Made a Turner's cube
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#14
Posted to rec.crafts.metalworking
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Made a Turner's cube
Ignoramus4120 wrote:
It is 2" in size. https://picasaweb.google.com/lh/phot...eat=directlink I'm going to guess w/o reading the rest of the thread first, you did it on your mill? You are having way too much fun Wes |
#15
Posted to rec.crafts.metalworking
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Made a Turner's cube
On 2011-03-20, Wes wrote:
Ignoramus4120 wrote: It is 2" in size. https://picasaweb.google.com/lh/phot...eat=directlink I'm going to guess w/o reading the rest of the thread first, you did it on your mill? You are having way too much fun Yes, on the mill. I have a bunch of relatives visiting right now, they all decided that they want a cube like this. |
#16
Posted to rec.crafts.metalworking
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Made a Turner's cube
Ignoramus28184 wrote:
https://picasaweb.google.com/lh/phot...eat=directlink I'm going to guess w/o reading the rest of the thread first, you did it on your mill? You are having way too much fun Yes, on the mill. I have a bunch of relatives visiting right now, they all decided that they want a cube like this. Sounds like you have a bunch of blocks to square. Do you have a relative or two you can trust to help out? That was time consuming just to model one in Alibre. http://www.garage-machinist.com/usen...urnerscube.pdf (3d pdf) I've finally found a good use for some cerrocast I have if I ever get the jones to make one. http://www.hitechalloys.com/hitechalloys_002.htm That way I could have flat interior faces and not worry about all hell breaking loose Wes |
#17
Posted to rec.crafts.metalworking
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Made a Turner's cube
Wes fired this volley in
: Sounds like you have a bunch of blocks to square. Do you have a relative or two you can trust to help out? Not really. The squaring of the block (for the first re-mount) can be done as part of the machining of the first face. After that, it's just turn, locate, and machine again. (done it). LLoyd |
#18
Posted to rec.crafts.metalworking
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Made a Turner's cube
On 2011-03-20, Lloyd E. Sponenburgh lloydspinsidemindspring.com wrote:
Wes fired this volley in : Sounds like you have a bunch of blocks to square. Do you have a relative or two you can trust to help out? Not really. The squaring of the block (for the first re-mount) can be done as part of the machining of the first face. After that, it's just turn, locate, and machine again. (done it). This is exactly what I do, I have a part of a program that makes the first face, that I comment out after the first one. i |
#19
Posted to rec.crafts.metalworking
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Made a Turner's cube
On 2011-03-20, Wes wrote:
Ignoramus28184 wrote: https://picasaweb.google.com/lh/phot...eat=directlink I'm going to guess w/o reading the rest of the thread first, you did it on your mill? You are having way too much fun Yes, on the mill. I have a bunch of relatives visiting right now, they all decided that they want a cube like this. Sounds like you have a bunch of blocks to square. Do you have a relative or two you can trust to help out? I swuare them right with the turner's cube program, it has an optional one liner to square the top. That was time consuming just to model one in Alibre. http://www.garage-machinist.com/usen...urnerscube.pdf (3d pdf) Very nice. It took me about an hour to write a G code routine to do that same. The G code subroutine, takes all parameters, like size of the cube, end mill diameter, shrinkage coefficients etc and works one side of the cube. I've finally found a good use for some cerrocast I have if I ever get the jones to make one. http://www.hitechalloys.com/hitechalloys_002.htm This looks very interesting indeed. Want to sell some to me? i |
#20
Posted to rec.crafts.metalworking
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Made a Turner's cube
Ignoramus28184 fired this volley in
: This looks very interesting indeed. Want to sell some to me? Yep, you'll need some cerrotru or cerrocast to finish a turner's cube. It gets right fussy near the end, as things start to get wobbly inside the box. G LLoyd |
#21
Posted to rec.crafts.metalworking
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Made a Turner's cube
Ignoramus28184 wrote:
I've finally found a good use for some cerrocast I have if I ever get the jones to make one. http://www.hitechalloys.com/hitechalloys_002.htm This looks very interesting indeed. Want to sell some to me? I only have two bars left now. I gave some away earlier. 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
Posted to rec.crafts.metalworking
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Made a Turner's cube
Ignoramus4120 fired this volley in
: It is 2" in size. https://picasaweb.google.com/lh/phot...rJdxO3bjAhN7B4 2H-ddOjxhE?feat=directlink Ig, it's pretty, as far as you went. But why didn't you complete it? LLoyd |
#23
Posted to rec.crafts.metalworking
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Made a Turner's cube
Ignoramus4120 wrote:
It is 2" in size. https://picasaweb.google.com/lh/phot...eat=directlink Are there "official" dimensions for the sizes of the inner cubes, or would some kind of scaling algorithm count? (you know, like each inner cube 0.8x or 0.9x the size of its "parent?") I kind of have nothing but spare time these days, and I'd _love_ to at least draw one up on my borrowed AutoCad, and might even get permission from Joe the Machinist (Yes, I actually have a coworker named Joe, who is a real live machinist) to use the lathe and mill in the shop to try to make one on my own. It'd also be really interesting to just draw one up in my spare time and ask him if he'd like to estimate it. ;-) Is the defining attribute to qualify as a "Turner's cube" simply the fact that it's cubes within cubes with thru-holes? Google is my friend, but won't tell me what dimensions qualify it as "Turner's" - my first thought would be to use some kind of geometric ratio from cube to cube, rather than fixed intervals, but how do I find that out? Or is it primarily an exercise in CNC programming, as opposed to doing it "by hand," as it were? Thanks, Rich |
#24
Posted to rec.crafts.metalworking
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Made a Turner's cube
Rich Grise fired this volley in news:im6728
: Is the defining attribute to qualify as a "Turner's cube" simply the fact that it's cubes within cubes with thru-holes? No, it's that the multiple cubes within cubes be free from one-another, and that their peripheries (inside and out) be square and not round. That was why I asked Ig why he had not completed it... Or is it primarily an exercise in CNC programming, as opposed to doing it "by hand," as it were? The ultimate skill is to do it by hand. CAD and CAM make projects like this overly simple. It only takes an hour or so to design one in a decent CAM system, even if you don't have any CAD software available. There once was a time when a turner's cube was a rite of passage for new machinists learing their trades (not unlike spending a year at a filing bench!) LLoyd |
#25
Posted to rec.crafts.metalworking
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Made a Turner's cube
"Lloyd E. Sponenburgh" lloydspinsidemindspring.com wrote:
Rich Grise fired this volley in news:im6728 Is the defining attribute to qualify as a "Turner's cube" simply the fact that it's cubes within cubes with thru-holes? No, it's that the multiple cubes within cubes be free from one-another, and that their peripheries (inside and out) be square and not round. That was why I asked Ig why he had not completed it... Or is it primarily an exercise in CNC programming, as opposed to doing it "by hand," as it were? The ultimate skill is to do it by hand. CAD and CAM make projects like this overly simple. It only takes an hour or so to design one in a decent CAM system, even if you don't have any CAD software available. There once was a time when a turner's cube was a rite of passage for new machinists learing their trades (not unlike spending a year at a filing bench!) Well, don't let me dislocate my shoulder patting myself on the back, but I _could_ draw something like that up on paper, tedious as it may be. It's just that using the CAD software is so much more fun! And I still don't know if there are any "official" dimensions, or if I'm allowed to just make them up. :-) Thanks! Rich |
#26
Posted to rec.crafts.metalworking
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Made a Turner's cube
"Lloyd E. Sponenburgh" lloydspinsidemindspring.com wrote:
Rich Grise fired this volley in news:im6728 : Is the defining attribute to qualify as a "Turner's cube" simply the fact that it's cubes within cubes with thru-holes? No, it's that the multiple cubes within cubes be free from one-another, You mean they could be twirled around inside the outer cube, like that Boy Scout whittling project with the ball in the cage? Thanks, Rich |
#27
Posted to rec.crafts.metalworking
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Made a Turner's cube
On 2011-03-21, Lloyd E. Sponenburgh lloydspinsidemindspring.com wrote:
Rich Grise fired this volley in news:im6728 : Is the defining attribute to qualify as a "Turner's cube" simply the fact that it's cubes within cubes with thru-holes? No, it's that the multiple cubes within cubes be free from one-another, and that their peripheries (inside and out) be square and not round. That was why I asked Ig why he had not completed it... Now I know what you meant. I was wondering. Or is it primarily an exercise in CNC programming, as opposed to doing it "by hand," as it were? The ultimate skill is to do it by hand. CAD and CAM make projects like this overly simple. It only takes an hour or so to design one in a decent CAM system, even if you don't have any CAD software available. I did it in straight G code subroutines. Here it is . (Makes a turner's cube. See projects.txt for formulas). Oturners_cube sub #xc = #1 (X Center) #yc = #2 (Y Center) #z = #3 (Current Z) #size = #4 (Side) #milld = #5 (Mill Diameter) #k1 = #6 #k2 = #7 #R = [#k1 * #size/2] Oif if [ #R gt #milld] G0 X#xc Y#yc Owithdraw call [#z + 0.01] #d = [ [#size/2 - #R] + #k2*#R*[1 - 1/sqrt[ 2 ]]] Odeepcylindricalpocket call [#xc] [#yc] [#z + 0.01] [#z - #d] [#R] [#milld] #X1 = [#size - 2*#d] Oturners_cube call [#xc] [#yc] [#z - #d] [#X1] [#milld] [#k1] [#k2] Oif endif G0 X#xc Y#yc Owithdraw call [#z + 0.01] Oturners_cube endsub M2 |
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