This is the second version of my Inverted 1x2x3 puzzle. (see the original topic here
) The first version worked, but I was somewhat disappointed with the fact that it either had to be extremely tight, or it would come apart easily. Also, getting it to turn well took about 1-2 hours of sanding the parts down. I then decided to completely redo the design. It turns much better than the first version, no sanding was required, and assembly was easier than on the first version. In addition, it is cheaper than the first version because I hollowed out the pieces more.
It is for sale in my Shapeways shop here
Watch the video
(For some reason, I get a blank screen every time I try to upload attachments, so the pictures are only on Shapeways for now)