2x4x4 pillowed. (untested, but should work.
thingiverse
I have thoroughly updated the original design, but it still requires testing. Some parts are currently thin, so I highly recommend printing this at 125% scale to make them more rigid. If possible, use an SLA or SLS printer for a better outcome. My test parts in ABS needed significant post-processing. I'm also uncertain about its functionality and if it has internal flaws. Lastly, if you print this design successfully, I'd appreciate your feedback. Please share your experience by making and posting it, leaving comments, and letting me know what you think. This was the first time I designed a puzzle that didn't need another as its core.
With this file you will be able to print 2x4x4 pillowed. (untested, but should work. 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 2x4x4 pillowed. (untested, but should work..