Split 1x2x3 (Improved)

thingiverse

I printed NKCubed's original design but was unable to assemble it - the complex mechanism proved too challenging for a regular FDM printer. Luckily, I had just finished designing my Split 1x3x4 and its mechanism is much easier to print. So I went that way. All credits still go to NKCubed; consider this thing as a polished version of his puzzle. In this design, I used 24mm blocks - I think the puzzle at this size looks and feels a little bit better. Though I am also uploading a 20mm version (at almost regular cube). I added fillets to all edges so that pieces do not catch each other on movements. A 0.2mm tolerance works fine in my case. One more note on the design - all pieces are bulging and cannot be printed as is without supports. Since I do not like printing with supports, I simply split each piece into a body and cap and then glued them together. I printed my puzzle in ABS and used acetone as glue. Moreover, my printer swallows the first few layers (smears it on the table), so I added 0.2mm height to each part. After gluing and sanding all pieces became exactly 24x24x24mm. If you feel this approach is overcomplicated - you may use a non-split version of puzzle pieces. See parts with 'As Is' in file name. Note, they are not properly rotated and not prepared for printing. Use your favorite slicer and printing approach. Here is the design source: https://cad.onshape.com/documents/7b23e370cf1249246f965e12/v/a875d3816d5ce948b098ed4b/e/295683f9e788584fa48ca44b Feel free to fork and adjust if needed. All main parameters are extracted to dedicated variables on the top of feature list. Feel free to ask me any questions regarding this puzzle.