Canvas Holder is done

The canvas holder part is done. It's relatively light weight at the same time it's solid. I'll put two screws through the top piece and the bottom bar to bite on a stretched canvas.

Next, I'm going to design the folding palette box. The mechanism to attach to the tripod would be a copy (probably patented) from a field easel I saw at an art shop in Portland, OR. I might need to give another visit to Portland to see it again since I don't seem to be able to find the same kind in major art shops in Seattle.