A neighbor of mine, from the next block over, showed up one night (Nov/2019) with some CAD (Cardboard Aided Design) work in-hand asking if we could knock out a part on the plasma table. It was an intriguing part and It took me a couple minutes to wrap my brain around it. I grabbed a steel rule and pair of calipers and turned his ‘CAD’ into the other kind of CAD. After that I used the CAD system to write some G-Code, ran it through a CNC-plasam ‘aware’ post-post processor and out to the garrage we went. Always fun to knock out a quick weekend project on the AVIDcnc.
The first image, below is the original ‘CAD’ model.
In the image below, we had roughly traced the part onto the steel with a sharpie to make sure it was going to fit on the piece the way we were nesting it. Also, you can see we made a few changes in the computer version of the CAD model from the cardboard one.
We did a little bending, shaping and gentle coaxing with a hammer, and then my neighbor put the MIG welder thrrough its paces…
A quick test fit check on the lathe he is fixing up / repairing.
My neighbor ran it back to his place for a test fit and then over the following week in the evenings at his place, he finished grinding / shaping and welding to blend in the radius. After that he got a coat of primer on it, then finish painted it and hit it with a seal coat and finally mounted it on his lathe.
This project came out great, and it was a bunch of fun to be a part of it. My neighbor really nailed it with the CAD ‘model’ and the welding/blending, and the finishing work is superb! With it fully boxed in and welded out, even though this is only 16Ga. mild steel, that part is incredibly strong and will likely last as long as the lathe…