I’ve been fiddling with the designs for the 3x2x1 Rubik’s Cube incorporating some of the changes I had considered:
- I’ve widened the holes for the nut and bolt.
- I’ve made all of the cubes solid. I think it will just work better with solid parts. I had left the four end cubes mostly hollow to:
- Improve printing time
- Use less plastic
- Possibly make an interesting hiding place for something very small
- I’ve shortened the “stem” that connects the semi-circular tab to the end cube to allow for a more snug fit.
- I’ve made the semi-circular groove in the center cubes narrower, to allow for a more snug fit.
- Make these cubes solid so that they slide against each other easier.
- I’ve noticed that the nut and bolt I installed into either side of the center cubes were pushed sufficiently well inside that they don’t want to come out or rotate. This is a very good thing for this design! It turns out that if you rotate it too much in one direction, you can just rotate it back a few times and it will be tightened back up! It also makes for easy disassembly/reassembly – just rotate the puzzle until it comes apart and rotate it back together to reassemble.