Thread holes on nema 17 motor arent deep enough
woainiou3 last edited by
I bought this nema17 bracket for my nema17 stepper. I aligned all four (front) holes on the stepper with the bracket holes. The 2 bottom holes (near the base of the bracket) is where the 2 screws went in all the way, but the top screws didnt. Is this normal? Do I just get shorter screws?
NEVERMIND, I just saw that it was the 2 holes where I had taken out the back screws on the stepper when I tried to fix it onto a home made aluminum bracket. When I realized I had to front mount it instead of back mount it, I bought the front-mounting brackets online. But I had successfully removed 2 of the back screws on the stepper at first, however I tried to hard to remove the other 2 back screws that I stripped the screwheads on those 2 backscrews and those are the ones that are still in the stepper and therefore the ones where the front screws dont fit.
I did find shorter screws for those blocked holes.
Danal last edited by
And/or, if it is close, washers under the screwheads.
Typically, you only have 4mm of M3 thread to screw anything in on the face of a NEMA 17, so selecting the correct length bolt is vital. Or lots of washers!
zapta last edited by zapta
Or grinding the screws with a dremmel tool. Had to do it two weeks ago.
Read once that three full turns are sufficient for screws to hold well. Not sure how accurate it is.
JoergS5 last edited by
If the screw is too long, one can screw on a nut, saw off part of the thread (or Dremel), and then turn the nut off, The nut removes the burr.