thetastysnail 0 Posted June 4, 2015 in I bought the wrong stepper motor, will it still work? (UM2) Hi, hope someone can help with hopefully a simple question. On my UM2 the y axis stepper motor became notchy and stiff, so i bought a new one to replace it. to cut a long story short, i managed to get the wrong one. I bought a sy42sth47-1684a instead of a sy42sth38-1684a the main difference is that it's longer by a few mm so i cant fit the shroud back on. the key specs of degrees per step seem ok, and it's more powerful. so can i do any harm in fitting this as a short term measure. i intend to get the correct motor asap, but i have a big job to finish right now cheers Rob Share this post Link to post Share on other sites
thetastysnail 0 Posted June 7, 2015 in I bought the wrong stepper motor, will it still work? (UM2) I can answer my own question now. the answer is sort of. the motor will operate and you can print stuff. I had to leave the cover off, which leads me to think it may get hotter than normal, but the temps seem ok compared to the x axis motor. also this motor only just clears the build platform. but the biggest problem what that i kept getting axis slip. It wasn't slipping on the pulleys, i tightened them up a lot. but it would become misaligned on the y axis, usually later on in the print. I tried lowering the current in the options and this seems to have cured it. So i conclude the bigger motor was causing the stepper driver to overheat and cut out periodically. I will be putting a heatsink on it later and putting the current back up, so we'll see how this helps. I'm still gonna get the correct motor for it as soon as poss. Share this post Link to post Share on other sites
minivipers 25 Posted July 28, 2015 in I bought the wrong stepper motor, will it still work? (UM2) where did you get the proper motors? do you have link ? Share this post Link to post Share on other sites
