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DIY positioner

Posted: Thu Jan 16, 2020 5:01 pm
by JayWal
Does anyone have ideas about building a positioner for welding round parts? Maybe some pictures of one you built? They're pretty expensive, I'd like to try to build my own if anyone has any tips or ideas or prints etc. Or if you know of one that sells for a reasonable price.

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Re: DIY positioner

Posted: Thu Jan 16, 2020 5:23 pm
by Oscar
Are you looking for a "kit" or a "project"? If you need a kit, certiflat makes a kit for $400. Just add your cordless drill and perhaps a chuck. If I "needed" one, it would be that one, as it is "complete" and not dependent on whether you can find someone else's parts list at your local places.

https://weldtables.com/products/fabturn ... e-everyman


You can always do a "project" that turns out to be more work, I know I sometimes do that, lol. But I wouldn't want to for a positioner.

Re: DIY positioner

Posted: Thu Jan 16, 2020 7:50 pm
by LtBadd
HERE is a link to a build I did several years ago

Re: DIY positioner

Posted: Fri Jan 17, 2020 6:42 am
by Coldman
Here's a link to the one I built a while back too.

https://r.tapatalk.com/shareLink/topic? ... source=app

Re: DIY positioner

Posted: Sun Jan 19, 2020 10:51 am
by ironshepherdforge
Those build threads are fantastic! Thanks for sharing them LtBadd and Coldman!

Re: DIY positioner

Posted: Wed Jan 22, 2020 8:28 am
by Bill Beauregard
I have a big old lathe. It turns 12 RPM. I'd like to figure out a way to slow it more for welding. As is it can be rotated slowly by a helper.

Re: DIY positioner

Posted: Wed Jan 22, 2020 3:46 pm
by Coldman
A small rubber wheel on a variable speed drill either directly in the drill or by shaft and bearings so that the wheel runs on the side of your lathe chuck.

Re: DIY positioner

Posted: Wed Jan 22, 2020 8:37 pm
by Bill Beauregard
Coldman wrote:A small rubber wheel on a variable speed drill either directly in the drill or by shaft and bearings so that the wheel runs on the side of your lathe chuck.
I'm thinking something like that on the other end of the belt train. Now i'm using a 1725 motor through the gear train I can slow it to 12. I have 190 RPM drills I could substitute easily, but there would be no variable speed. It'd slow to 1.3 Rpm. I don't think that is slow enough.