Thingiverse
8-axis Cube Core (assembly) by grafalex
by Thingiverse
Last crawled date: 4 years, 1 month ago
Note: this thing is not a complete puzzle, this is just a core
Description
I needed a 8-axis core for my Redi Cube clone. Usually 3D printed cores do not provide enough strenght and tend to crack on layers. I searched for a simple design (at least simple for printing), that is strong enough and also provide a way to tune tensioning. Here it is.
Pros:
Uses regular rubik's cube core, screws and springs
Easy for printing
All springs mechanism is located inside the core. Attached parts require only a space for a nut
Cons:
This design does not fix axis orientation - it may slightly move under external force. This may be ok for some puzzles (e.g. Face Turning Octahedron), but Redi Cube gets too loose
Core diameter is 44mm
Materials needed:
Standard Rubik's cube Core
6x sets of Screws and Springs
8x M3 12mm screws
Printing and assembly
Print the following number of parts:
6x Cap
6x Cap Base
8x Corner
Cap Base shall be glued to the Cap (this basically is a single part, split to simplify printing). I used Acethone for parts printed in ABS. Use 3mm drill to remove a small membrane in Cap pieces (it was designed to simplificaty printing and avoiding supports)
Use springs when screwing Cap pieces to core
Corner piece of the core is screwed to corresponding puzzle part (Redi Cube Corner or Face Turning Octahedron center piece). No need for springs here. Do not screw parts too tight - it should freely rotate
Corner pieces have protrusions that should fit corresponding gaps in Cap piece. This is done to fix piece position, but allow some elastic movements
Feel free to review my design source in details at https://cad.onshape.com/documents/0c898146eff8a4ab038c2c37/v/965c9b87c16fa7cf4b113b59/e/a97d32a0ffa55f3f443a0366
Description
I needed a 8-axis core for my Redi Cube clone. Usually 3D printed cores do not provide enough strenght and tend to crack on layers. I searched for a simple design (at least simple for printing), that is strong enough and also provide a way to tune tensioning. Here it is.
Pros:
Uses regular rubik's cube core, screws and springs
Easy for printing
All springs mechanism is located inside the core. Attached parts require only a space for a nut
Cons:
This design does not fix axis orientation - it may slightly move under external force. This may be ok for some puzzles (e.g. Face Turning Octahedron), but Redi Cube gets too loose
Core diameter is 44mm
Materials needed:
Standard Rubik's cube Core
6x sets of Screws and Springs
8x M3 12mm screws
Printing and assembly
Print the following number of parts:
6x Cap
6x Cap Base
8x Corner
Cap Base shall be glued to the Cap (this basically is a single part, split to simplify printing). I used Acethone for parts printed in ABS. Use 3mm drill to remove a small membrane in Cap pieces (it was designed to simplificaty printing and avoiding supports)
Use springs when screwing Cap pieces to core
Corner piece of the core is screwed to corresponding puzzle part (Redi Cube Corner or Face Turning Octahedron center piece). No need for springs here. Do not screw parts too tight - it should freely rotate
Corner pieces have protrusions that should fit corresponding gaps in Cap piece. This is done to fix piece position, but allow some elastic movements
Feel free to review my design source in details at https://cad.onshape.com/documents/0c898146eff8a4ab038c2c37/v/965c9b87c16fa7cf4b113b59/e/a97d32a0ffa55f3f443a0366