Couldn't find the thread on custom/made tools, so here's we go... Here's a way to make perfect circles with a plasma cutter. I've never tried it with a torch, but don't see why it wouldn't work. Find some tubing that sleeves over your torch head, drill a hole, weld a nut to the sleeve so the bolt goes though the hole tightening down on the torch head. Repeat this on a solid rod (Huh,huh I said rod) about 12"-16" long. Put a point (a ground down bolt) opposite tightening bolt. Make this long enough for the torch to sit parallel to the table. Use a center punch to mark the center of your circle and adjust the collar with the point to match the outside diameter you want to make. Start a hole, slowly spin it around and your done.
Good idea, made one some years ago that was similar, the only difference was that I had a bearing on the end that holds the torch. That way the torch remained at the same angle as it is being held, all the way around.
Also made these for taking a pre-determined (that's a big word) amount off something. Same as above but I used cut down u-bolts to make a guideline/edge to run along. Make them in any length you think you may use regularly. The two shown are 3/4" and 1".
The Jalopy Journal
