Ivy Cube

This is a functional clone of Ivy Cube. This is very simple, but nice looking twisty puzzle.

Print settings:

• 0.3 mm or 0.4 mm nozzle
• 2-3 perimeters
• 0.1 mm layer height (mine was printed with 0.2mm and surface is too uneven)
• 10-20% infill
• no supports
• For outer corners you may probably need model cooling as there are overhang parts.

Parts are split into 2 halves - this is needed to avoid supports. Just print them and glue halves together with acethone (for ABS) or dychlormethane (pretty much every type of the filament). Perhaps printed parts will need some sanding.

Here is a number of parts you need:

• 1 Core
• 4 inner spacers
• 4 outer corners + 4 stubs for them
• 6 center pieces

Core parts have 4 througholes - glue there a piece of filament. This will improve core strenghts (so that it will not crack by layers), as well as allow better positioning between halves.

Springs are absolutely must have for this puzzle, otherwise you'll not be able even assemble this puzzle. I used 0.5x5x10 springs I bought on Aliexpress, but springs from a clicked pen may also work well (though they may be too loose).

Corner assembly is a little tricky. First screw corner stubs with M3x20 screws. Do not forget springs.Do not tighten the screw too much - as per design there should be about 0.5mm between the core and corner stub. Spring should allow the stub move up to 1-1.5mm from the core. You should set correct tensioning now - once the puzzle is assembled you will not be able to adjust it. Now glue outer corner pieces to the stubs using a few drips of hot glue. Assembling the rest of the puzzle should be straightforward.

I used some shiny and unusual stickers, but traditional colors shall look great as well.

Original CAD document: https://cad.onshape.com/documents/d23fb2026e5a0c9a631006f8/w/60bc20c99d661ece4c61270a/e/64acb09f3f45f89c23ae2f5a

I am not sure who is the inventor and producer, but I would be happy to make proper credits for them as well.