[cwkoss]

I have an idea for a build, hereby up for grabs for Matthias or anyone. Inspired by your copy carver. Thanks for all the great videos! You started my interest in woodworking :-D

3D 'Tracing at Scale' with light

Apparatus is two rotationally-locked turntables and a can light (fairly directional), all mounted in a line. A model is placed on the center table, working material is placed on the table further from the light. The light and model are aligned so a shadow of model is cast on the working material. Remove everything that is illuminated, rotate, repeat, until you've created a copy of all (convex) curves of the model. Because the tables are rotationally locked, you can reliably reproduce the corresponding shadow for any rotation - can work your way around multiple times or easily come back to tricky angles. Distance between light and model can be adjusted to change scale resulting shadow.

Could be fun way to guide yourself with modeling additive materials like clay as well as woods and such.