sequoia
Well-known member
I've been scratching my head lately on making a perfect clamping caul to fit an unknown radius from a ukulele pattern. In other words, I can do the convex part OK, but making the concave caul taxes my abilities. I don't want it to be approximate, I want it to be perfect.
I got this tip today from a Stew-Mac technician that I thought was really good: Use the convex part to make a concave mate by using automotive Bondo. Using wax paper, just press the desired convex part into the Bondo, let dry, remove paper and you have the perfectly mated caul. I've been thinking and this might work for making all sorts of strange concave radiouses including molds and sanding bowls. Interesting. I'm going to try it.
I got this tip today from a Stew-Mac technician that I thought was really good: Use the convex part to make a concave mate by using automotive Bondo. Using wax paper, just press the desired convex part into the Bondo, let dry, remove paper and you have the perfectly mated caul. I've been thinking and this might work for making all sorts of strange concave radiouses including molds and sanding bowls. Interesting. I'm going to try it.