What about it, 3D-printing nerds? Adding ground-up wood or metal or pixie dust to your plastic filament is one thing, but if you want tensile strength in the X-Y plane, it’s going to be hard to ...
We haven’t tried these ourselves, but [3D Printing Nerd] has an interesting video review you can see below. We assume the ruby — which is just aluminum oxide — is lab-created and not a ...