EDIT 07/13/2020: I have tested these parts and found that while I did manage to get some decent looking prints there were some artifacts that seem to be caused by one of the wheels being loose.
For some reason I can't seem to get all four wheels tensioned properly so I intend to design and test a 3 wheels variant.
F3D Archive and STEP files for this design have been uploaded to allow for easier modifications should anyone wish to do so.
While working on my DBOT I couldn't find a direct drive carriage for the DBOT that was designed to fit the Bondtech BMG extruder and the BLTouch in a configuration that I liked so I remixed a few parts.
I also added a spot to insert some 3mm nylon into the cable mount to help support the cable bundle.
DBOT Probe offset:
X: +30.9
Y: +31.6
The Fan Duct needs support on the build plate only below the fan inlet and support arm. I used PrusaSlicer to customize and limit the supports to that area.
4 perimeters
The author hasn't provided the model origin yet.