About this 3D model

Stewart T. Coffin's design no.36 "Coffin's Improved Burr (1979) is a level 2-3 puzzle meaning that the first piece is removed with two shifts, and three more shifts are required to release the next piece. I have uploaded the individual pieces of which you need one of each or you can print the bed of all 6. Update 10/08/19 - Small adjustment to allow for better slide action.