Printrbot’s Double Drive Extruder – two drive gears with one stepper motor. no spring, just the perfect width grooves in two drive gears. We did all sorts of mods – some good some bad- to print Ninja flex. This totally solves it. And does away with all tensioning springs which was an opportunity for error. We hope everyone adopts it for better user experience.

Ninja flex didn’t exist when we started 3 years ago… And I wasn’t aware of it when we designed the extruder. We are rolling with the punches. I am really happy to see interest in new materials and glad our new metal Ubis can print them. Btw- polycarbonate is no problem. When you get up and over 300C, you need a thermocouple to stay accurate. Carl is finalizing a special little pcb to handle that if you want to play.

read more on: Brook Drumm’s Channel

Every Thursday is #3dthursday here at Adafruit! The DIY 3D printing community has passion and dedication for making solid objects from digital models. Recently, we have noticed electronics projects integrated with 3D printed enclosures, brackets, and sculptures, so each Thursday we celebrate and highlight these bold pioneers!

Have you considered building a 3D project around an Arduino or other microcontroller? How about printing a bracket to mount your Raspberry Pi to the back of your HD monitor? And don’t forget the countless LED projects that are possible when you are modeling your projects in 3D!