Needed a nice compact bracket to support the E3D Slimline Nema 17 Motor (it has a 26mm long body) they use for their Titan Extruders.
I wanted mine mounted this way to reduce issues for the extruder to bring the filament off the spool (which is directly above).
Inspired by jnaulets great design https://www.thingiverse.com/thing:829038 but here I have taken away the neck, cut away a section for the 4-wire connector socket and created several versions.
Nema17SlimlineBracket and Nema17SlimlineBracket _v2 are similar except the M3 holes to secure to the frame are different distances apart - I prefer the Nema17SlimlineBracket as it's easier to pick up the M3 bolts which you have already put into the channel (I hope!) and stacked on top of each other (I find a little bit of Blue Tack in the channel helps keep the nuts handy and not slipping down to the bottom).
Nema17SlimlineBracket_v3 has a channel for the wires for the stepper motors at the bottom of your frame - I haven't tested this but as long as you are ok with printing overhangs then you should be good. I am not that precious to have to hide the wires everywhere ;-)
Nema17SlimlineBracketEnd and Nema17SlimlineBracketEnd_v2 are similar except v2 has a little nub to fill in the gap of the cutaway for the 4-wire connector - again depends how stylish you want it to look - have a look at the photos. If you want to save the tiny bit of filament than print the Nema17SlimlineBracketEnd version.
It is snug as the brackets fit in the channel that runs down the corners of the motor (you should be ok to push but if it's too difficult then run a knife down the edges of the print of the interface with the motor) and stops is flopping around, however if there is a little bit of play then put a thin sliver of rubber in there to fill the gap - if this is a common problem then I can make a version of the bracket a couple of mm shorter.
I printed these at 40% infill. 0.2mm layer height. PLA.
You will need:
- 3xM3 8mm bolts for attaching to the OpenBeam.
- 2xM3 20mm bolts to attach the end to the bracket.
As always tighten well but not too much - I hate hearing that crack when you turn half a turn too much...
Screw the bolts through once before fitting to make things easier for the actual fitting.
Hope you like it (it's my first uploaded design).
Kossel XL (builda3dprinter.eu)
E3D Nema 17 Slimline SKU: MT-1701HSM140AE or E-MOTOR-NEMA17-26MM-D-SHAFT
You may want to check the recess holes on the BracketEnd.
There may be a few straggles of filament due to the overhang, just dig them out carefully with a screwdriver or similar. Same for the wire channel on the main bracket part.