Rubik's 3x3x3 O-type (2) Square One and Square Two

thingiverse

It's a variation of my other O-type cube. Now the same angle between all cubies is achieved, resulting in more free positions available. Printed in ABS plastic, PLA should also work if carefully sanded to remove any rough edges. To assemble: Print the round parts first; inside each part are holes for assembly. Next, cut rods (I've used M3 threaded rods) and glue them together until dry. Use a vice to hold the parts firmly in place while the glue sets. Once the plastic has dried completely, remove any excess plastic blobs and sand down the surface if necessary. To ensure smooth surfaces on all parts, I used acetone vaporization. When dry, inspect each round part for assembly by placing an M3 screw through a washer under the screw head, followed by a small amount of grease, one round element, another washer, and then the next round element before securing with a nylock nut. If successful, unscrew the parts, fill the tracks with cubies, and reassemble. For added stability, paint or sticker the sides as desired. If you experience difficulties gluing the round parts together, consider drilling from the outside and using M3 screws for reinforcement. Refer to the red marked area in the SCAD screenshot for assistance. The puzzle system used in this design meets the square-2 system (outer rows only). The mid-row features a separate puzzle mechanism. Edit: 2017-03-20 I have added two new versions, Version 3 and Version 4. These include cubies with angles of 30 degrees and 60 degrees wide. You can download these designs in zip folders. Version 1 and Version 2 are working successfully without issues. I am confident that Version 3 and Version 4 will also work as expected. Twin projects: https://www.thingiverse.com/thing:3098632 https://www.thingiverse.com/thing:1316057 https://www.thingiverse.com/thing:3072245