Ender3 DirectDrive Remix

UPDATE: Added a 4 Fixing point version (better), has additional option for using a longer bolt in the fan cover upper fixing hole for additional stability.

This is a remix of the printed DD adaptor (3998501) for the Ender3 using mostly stock parts, you will need an additional 2(4) off M3x8 screws and 2(4) off M3 Nuts depending on version.

I had problems in a few areas with the original design.
1. too tight tolerance for fitting - adjusted
2. Interfered with fitting a standard BLtouch mount - material removed
3. Difficult to remove extruder for maintenance / calibration - split into 2 parts to allow
extruder removal
4. Cable maintenance - points for cable tie cable restraint
5. Printability - now prints without supports