3D printing project
Snap-Fit Puzzle Cube
A two-part puzzle that clicks together.
Print notes
Material: PLA
Print time: 1 hour 35 minutes
Project story
Two blue pieces slide together to form a cube. A tongue on one half fits into a matching slot on the other, so the interesting part of the design is the join rather than the outside shape. The aim is for the pieces to close by hand, stay aligned, and come apart again without forcing them.
Build notes
Try short versions of the tongue and slot with slightly different clearances. Compare how far each one slides and where it catches. A small chamfer at the entrance helps the pieces line up without loosening the entire fit.
What I learned
Print a small sample of the join before making both full-size pieces. Changing the fit in the model is easier than sanding a finished puzzle.
