Direct-drive Simplified

**Uploaded 1/22/2017**
**UPDATES:**

*1/24/2017* 624 bearing idler id change to a more press fit, widened out the lip for the extruder flange so that it wasn't so tight to install, changed the other nut hole to 3mm also
*1/24/2017* PTFE inner and outer ports implemented as well as further tweaking with size and simplicity
*1/26/2017* 624 bearing is now held by a flat head m4 bolt and nut.
Widened the PTFE counter-bores. Widened the cold-end flange height. Removed strange flange that prevented easy idler inspection and cleaning
*2/27/2017* Stiffened the 624 bearing holder, and also now does not need a flat head to fit a bolt head to hold the bearing.

With more to come!

**for 1.75mm extrusion**

Remixed around cheap Chinese hot end off eBay, and existing designs.

***BOM***
BOLTS:
M3 X 5 (3)
M3 X 20 (4)
M3 X 50 (4)
M4 X 10 (1)

NUTS:
M3 (5)
M4 (1)

ALSO:
624 BEARING (1)
PTFE FOR 1.75MM FILAMENT (ABOUT 40MM)
CABLE TIES (6)
Optional