Wow, that sherpa mini certainly appears to share a common ancestry with mrac1's extruder. I don't know which one came first, but having so many similarities allows people like us to enjoy the advantages of both.
The sherpa mini was the first. When I printed it, I noticed that the shaft of the 50 tooth gear grinds on the motor housing. Therefore, I have completely redrawn it. Because of the given Bondtech parts and the motor, there are not many possibilities for the design. Apart from that, the Sherpa mini is very nice and I wanted to get as close as possible to the look with my version.