#21
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Richard, can you post a picture of the split roll configuration that you have been using? I would like to see how the individual parts are made and how you hold them together and keep them square and in line. Are all of the part/pieces keyed to the shaft to stop them from rotating in relation to each other. How long is the shaft on your bead roller and what is the diameter of the shaft? What keeps the metal flat outside of the beads as you roll the shape in? How do you lay out the lines to follow when there is a slight crown in the panel? I think more detail would help. Thanks.
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Joe Hartson There is more than one way to go to town and they are all correct. |
#22
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I made a set of dies for a model a quarter panel bead. I tryed a test peice today.
I don't have anything to go by so I guessed at the demensions. Layout... These are the half bead dies. After running the peice. I put the peice in my brake but didn't clamp it down. Then i just pull up on it as i slide the peice out to get a little curve to it. After tweeking in the brake Then I have a split die to make the center. I just use my tipping wheel on top. Then I forgot I do have a '32 Ford pickup cowl. It came out a little to wide on top but it's close!! If you pm me with your address I can ship the dies to you when you need them. I will want them back.
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Jeff Dyce Hell, there are no rules here - we're trying to accomplish something. Thomas A. Edison |
#23
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Thats pretty close to nailing it. I've got a 32 Cab myself and had considered making copies of the doors to keep my originals as templates for the future. This has been a really good thread. Thanks for everyone's effort.
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#24
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1932 ford beadline
Thanks so much for everyone that repleyed with all the good ideas. I got some things in the works on this project and I will post the results as soon as I can. I been working over at work alot of hours and haven't had much time at all lately. I will try to get some pics up soon, T hanks again so much, Mark
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Mark |
#25
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Joe,
The disk part of the dies are made from 1/8" sheet. cut round circles with my pattern torch. You could use a hole saw. Drill center holes in lathe. then machine outer edge round to that center. radius the edge. disks done. then some kind of spacer between them. washers, tubing or whatever you have with square ends. No key-ways. I never have to lock any of my roll dies to shaft. They don't turn. And even if they do slip a little once in awhile it makes no difference. Just a bolt at roller shaft end with washer is plenty to hold them. profile part on other shaft really needs nothing to keep metal flat as you put it. It doesn't bend down if that is what you are thinking. When a person works with sheet metal long enough you just know this. Hard to explain but the sheet itself does that. due to the difference between the sheet on the one die vs. the sheet that is pushed down just past the other die. There is a small transition area there that is pulling up on sheet past the die. Its trying to stretch but instead pulls that outer edge up. And thats why the sheet past the dies needs nothing in most cases. The deeper you go in one pass the more that outer edge of sheet past die will pull up. (Not Down) If it is pulling up too much then make more then one lighter pass instead. My old roller has 1 1/4" shafts with 1 1/8" for dies. 3" long for dies. you can use dies wider then shaft easy. Even ad another die past the end of shaft end.
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The Rod Doctor, Richard Crees |
#26
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Richard, what kind of bead roller do you use and can you post a picture of it? I find that the sheet will turn up a little when you don't have enough overlap of the dies. With what you showed in your drawing it is like two tipping wheel pushing down over a crowned roll. When you change the length of the rolls where do you place the shims to keep everything tight?
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Joe Hartson There is more than one way to go to town and they are all correct. |
#27
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Thanks Joe, you just helped me also.Now i know how to tackle a project i have been thinking about.
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Jim Bob |
#28
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It's been awhile but I've been busy and working alot. Cut this plates out, there 3'' wide. It was mentioned that the metal would possisbly need prestretched, I don't know but I had the idea that maybe I could use the female die to use as a (bottom) form to hammer the metal into???? Thought maybe I could cut the male die down to 1' or so and try hammering it into the female die. I bought a powered bead roller and as was mentioned earlier I don't think it will form the bead in one pass for sure. Dyce sent me some dies to use, I just haven't had the time to try them either. This is going to be a real challenge for me but as I said before thats part of the fun. (sometimes).Any ideas or comments will be greatly appreciated. Thanks Mark
100_3576.jpg 100_3572.jpg 100_3574.jpg 100_3573.jpg 100_3571.jpg
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Mark |
#29
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Very nice! Were they done with an EDM? If not how did you make them??
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Tom |
#30
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Yes with an edm, these machines are amazing, I think i'll make another set just so I don't have to beat on these. Mark
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Mark |
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