Laser cut vernier calipers
This laser cut caliper is made from 1.5mm birch plywood, I'm still using Kitronik because I've found other places have sent me 'external' ply instead of 'internal' ply and Kitronik are consistently high quality. I realise this is actually a very old project but due to dead links I've been meaning to rehost the files for a long time to make sure that the links are active and available. (svg here)