SpeedDrive Remix - Ender 3 direct drive mount for BMG & Pancake Stepper

This is a remix I made for the SpeedDrive V1.0, a great direct drive setup for the Ender3. One limitation of SashAlex007's design is that the motor only fits between the rails, resulting in the loss of valuable real estate on the build plate (about a 10% loss).

This iteration clears approximately 22mm between the mount and the rails, which is enough space to fit a pancake stepper between the mount and the rail, resulting in regaining all of the original build plate. This is the pancake stepper I use (I cannot guarantee any other will fit - but there are a lot of options out there):
https://www.amazon.com/gp/product/B00PNEQ79Q/ref=ppx_yo_dt_b_asin_title_o09_s00?ie=UTF8&psc=1

If you use a pancake stepper however, you won't have enough torque with a stock extruder. You will need a geared extruder to push the filament due to the smaller motor size. There are lots of options, I use this:
https://www.amazon.com/gp/product/B07RBL4CJC/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

Overall, this setup may just be the most light weight / well balanced option for direct drive.

I include cable management at the top of my design, which is intended to hold your cables via zip tie. In addition, I suggest printing an x-cap cable management, I use this one, designed by boothy boothy: https://www.thingiverse.com/thing:3881061

This design fits the HeroMe duct without issue. I haven't used it with another mount. The HeroMe can be fund here: https://www.thingiverse.com/thing:3182917