About this 3D model

https://www.youtube.com/watch?v=epcxTORf1z8 The extruder on the [TAZ 4][2] features a modular design making upgrading easy. It's mostly made of 3d printed parts that are available for download. Our 1.75mm update to the extruder mount and guidler relives pressure and allows retraction preventing the filament from kinking, making loading nice and smooth. Read the full tutorial on: [learn.adafruit.com][1] [1]: https://learn.adafruit.com/taz-4-1-dot-75-filament-upgrade [2]: https://www.adafruit.com/product/1670