Beta of a direct drive using the Stock Creality extruder, stepper and hotend.
One of the roller bolts will need to be replaced with a standard M5 socket head bolt. The shroud fits over this to give a secure mounting.
The stepper bracket is secured to the shroud with M3 socket head screws which are secured into M3 nuts fitted into the provided slots. The 5015 blower is secured to the duct in a similar way, as is the duct secured to the shroud.
The Extruder location plate fits into the 22mm hole in the stepper motor bracket between the stepper and the extruder backplate. This will lock them in relation to each other.
The stepper bracket and the duct will print without supports in the orientation they are downloaded. The shroud will need supports from the buildplate only.
I'd suggest 4 to 5 walls for the shroud and stepper bracket, with 25% infill. Ideally print in PETG.
6/3/19: Slots for the nuts on the stepper bracket tweaked to make it easier to insert the nuts.
12/3/19: Bondtech BMG extruder bracket added.
26/4/19: Version 2 of the hotend shroud uploaded to address an interference with BLTouch sensors.