#41
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using ball transfer tables
Using two ball transfer tables:
P1030226cc two ball transfer tables, 3ft X 5ft panel 16ga steel, helix shaping.jpg
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Kent http://www.tinmantech.com "All it takes is a little practical experience to blow the he!! out of a perfectly good theory." --- Lloyd Rosenquist, charter member AWS, 1919. |
#42
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Fantastic!
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Bart Risuccia |
#43
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I'm guessing the same can be done with English wheel?
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Bart Risuccia |
#44
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Bart, I'm looking at your progress and I have to comment on that.
Take a 1 x 1.5 meter plate. Bend its edges about 40mm and try to shape something. I shaped in Eckold with a shaping tool. Then I smoothed in EW. I don't think your approach is right. Holding the edge firmly will not allow you to shape. The edge must be slightly deformed for the sheet metal to bend. The bent edge serves as a temporary reinforcement. It is not meant to be a musical instrument - a drum. Make an experiment on a smaller plate and you will immediately see the whole process. When I advised to strengthen the edge, I advised to add an angle, but not to weld so tightly. It must be flexible. Or attach only temporarily fot to check the shape. No drum. Sorry if we didn't understand each other.
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Jaroslav |
#45
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I have come up with two solutions.
I built a temporary 'table' behind my wheel. I often had to reposition the table top to flow with the developing curve. Video: https://www.facebook.com/1405480713/...1717932249558/ Other solution was hanging one side of the panel with a balancer on my workshop-swingarm (that normally just holds a power extension cord). No video of this setup in the wheel but here's some photo's and videos when I set some rivets in the same panel using the balancer: https://www.instagram.com/p/BpJjiB1i..._web_copy_link Both methods were a hassle but I managed in the end. For the wheel I have to say the table worked best for me. The balancer might have worked better had I suspended it from a (lineair) rail instead of a (rotating) swingarm Last edited by RatRockx; 05-26-2021 at 04:32 PM. |
#46
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Thats ok Jaroslav. I can easily put a bend on the edges as ill have someone to help me hold the large sheet. The bend i guess is the stop the sheet from flopping around while EW process..
I thought the tighter the better but as you were saying not like a drum. No problem. Quote:
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Bart Risuccia |
#47
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Thanks mate. I just watched the facebook video, that looks great.
Great rivet tool! Quote:
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Bart Risuccia |
#48
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So i bent the edges up a few degrees. It was enough to stiffen the sheet quite a bit.
After some wheeling i have gotten closer to the correct shape/crown. But the back end of the sheet need a lot more curve/crown (In picture) I think the bend around the edges is resisting some of the curve/crown in the sheet though. (Which makes sense) 193668230_474741343586708_8417452435338899592_n.jpg 186496680_222866942712700_4358292402416545374_n.jpg 187427696_931594930962545_1461566832682916276_n.jpg 189066388_270381831536342_7441965059562469169_n.jpg 189399999_311328230563267_3104981108778339288_n.jpg
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Bart Risuccia Last edited by galooph; 05-29-2021 at 08:49 AM. |
#49
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Looks like you've taken a better path.
Yes, that's it what I thought. You can shape a bit in a press or hammer, but then back di EW for smoothing. Straighten the edge when you have the shape you need. I think you're ahead of the target.
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Jaroslav |
#50
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I did hammer a little on sand bag. I will smooth in EW
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Bart Risuccia |
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