Ultra Slim Ender 3 Y-Motor Bracket Double Shear

Ultra Slim Ender 3 Y-Motor Bracket

https://www.thingiverse.com/thing:5158277

Replacement end-stop mount

https://www.printables.com/make/2724415

BOM

4x m3x30 instead of m3x20

1x 625ZZ bearing (Two can be salvaged from a v-wheel. Use a flat head screwdriver. Insert the screwdriver down the center, line it up with the split between the two bearings, and gently work them apart by pressing down on the center hub of the opposite bearing.) 

Stepper motor with 24mm shaft is ideal. Larger may work. 

Measure the depth of your steppers mounting holes to determine if you can use the deeper/more engagement 6.4mm version. Otherwise, the 4.4mm version should work for all steppers with 4.5 mm minimum holes.

Original Ender 3 pro stepper will NOT work. 

Grub screw access hole should be mounted at the top. 

Mirrored version for Switchwire style mounting is UNTESTED.