Ultralight direct drive extruder/hot end with built-in fan
- NEMA14 thin stepper: 15g http://www.omc-stepperonline.com/9deg-round-stepper-motor-065a-12ncm17ozin-14hr080654s-p-87.html
- Cycloid gearbox, 10:1 to 20:1 (TBD): https://github.com/lsuess/scad-lib-cyclogearprofiles
- 40mm fan with duct on the hot end and on the print: 15g fan + XXg duct
- hot end from the DeltaPrintr mini but supporting large nozzle sizes from the E3D Volcano: 41g total