Bump Skewb extensions
thingiverse
Most 57mm skewbs should work fine, but it's a good idea to print one corner and one center piece first to check if they're compatible with your puzzle. The finished product will measure 68.40 mm in size.
Download Model from thingiverse
With this file you will be able to print Bump Skewb extensions with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Bump Skewb extensions.