Cube and helix, impossible passthrough illusion

This is a proof of concept for a contest, inspired by RJ Design's awesome passthrough illusions.

It is meant to be easy to print as two separate pieces, with no difficult overhangs. Tolerance between parts it around 0.5 mm, so it should run smoothly.

I used a 0.6 nozzle with 0.7 mm wide walls and a 0.3 mm layer height.

I appreciate your feedback.

Cheers! B.