Bracket/mount riser for 55/57mm CNC motor

thingiverse

This is a riser for the aluminum mount that comes with many CNC motors. The stock mount clamps on the narrow body of the motor, reducing available z-axis travel by about 15mm. This is particularly important on a CNC machine like the 3018, which only has about 40-50mm of total travel. Using two of this riser, as I'll show in a picture, you can get that back without cutting any aluminum. I recommend printing these in ABS at 100% infill, so there is no concern about crushing under heat and force of the motor. I'm using this with the upgraded z-axis mount designed by Corentintav: https://www.thingiverse.com/thing:4091764 (I highly recommend it -- it works well.) This needs four M6x100 bolts, rather than the M6x70 ones he specified. M6x90 might be long enough, but 100mm length doesn't interfere with anything. I've also included files for printing M6x100 bolts, a derivative of https://www.thingiverse.com/thing:193647. With Covid-19, Amazon is taking forever to ship. If you print the bolts, you must use ABS at 100% infill and cut threads with a 6x1.0 die about 25mm from the end. Print the bolts horizontally so layers extend the length of the bolt for strength. If the bolts turn out oval, don't worry about it -- the thread cutter will fix such an issue.