Drew this up for friend PF (back in 2020), for his B9 robot speed controllers to be mounted securely.
I had one at the time, but was not able to print a 3D version. So this was the second attempt as the first was a bit to tight a fit on the ends.

I've mirrored the underside of the speed controller to assist air flow around the unit. And cut out's in the top for cable clearance.

I've just been asked by another R2 Club builder and reminded myself that I had not actually added the stl to my page.....so here it is.

printer

No

Yes

0.15 or above

25% or above

The photo showing the ESC sitting in the holder was the second version PF printed off.

As mentioned above, I had one to hand and a vernier, so used it to draw up dimensions for this holder.