After a few failed attempts at trying to printecoiras kaleidocycle I decided that I should try and design my own and so I did although I used the same features and design I constructed my own model from scratch, It is designed to be very robust and contains many chamfers to make it more forgiving of bad bed leveling and the tolerances are also plenty big enough to be easily printable but still not loose. Print with no supports and a 0.2 or less layer height.
Overall it is designed to be roust and stress free.
If you have any problems please let me know.
Enjoy:)