About this 3D model

This is a model of the classic 3x3 Slide Puzzle. I designed this using TinkerCAD (https://www.tinkercad.com/things/0Es7kiRoCVD). The tolerances between the pieces are 1mm, I usually print them at 70% scale so they have a .7mm tolerance. No supports necessary! I modeled this because I could not find a 3x3 slide puzzle available for commercial use that I liked. If you sell my items in a commercial setting, I humbly request 10% of the profits though I have no enforcement mechanism =P . Though no kickback is necessary for casual sales to friends/gifts for children.