Dual-filament printers may seem like a gimmick to the uninitiated, but they open up some powerful options for advanced designs. [Darren Tarbard] shows this off with a nifty spring clamp that is 3D … ...

We love this design’s simplicity, but its mundane appearance is deceptive because a lot is going on here. [Bas van Hassel]’s clamp looks like a bench cookie or maybe a compressed hockey… ...