Stepper motor sticking - Hardware, firmware and software help https://forum.prusa3d.com/forum/english-forum-original-prusa-i3-mk4-hardware-firmware-and-software-help/stepper-motor-sticking/ Prusa3D Forum Discussion Board en-US Wed, 06 May 2026 10:15:20 +0000 wpForo 60 RE: Stepper motor sticking https://forum.prusa3d.com/forum/english-forum-original-prusa-i3-mk4-hardware-firmware-and-software-help/stepper-motor-sticking/#post-694289 Sun, 14 Jan 2024 10:49:00 +0000 Hmm, it's like this straight out of the box, not plugged in..

]]> Hardware, firmware and software help Jay https://forum.prusa3d.com/forum/english-forum-original-prusa-i3-mk4-hardware-firmware-and-software-help/stepper-motor-sticking/#post-694289 https://forum.prusa3d.com/forum/english-forum-original-prusa-i3-mk4-hardware-firmware-and-software-help/stepper-motor-sticking/#post-694257 Sun, 14 Jan 2024 00:13:12 +0000 IF it does this when disconnected then contact Prusa Support.  If it is plugged in or connected in any way, disconnect and retry.

Cheerio,

]]> Hardware, firmware and software help Diem https://forum.prusa3d.com/forum/english-forum-original-prusa-i3-mk4-hardware-firmware-and-software-help/stepper-motor-sticking/#post-694257 Stepper motor sticking https://forum.prusa3d.com/forum/english-forum-original-prusa-i3-mk4-hardware-firmware-and-software-help/stepper-motor-sticking/#post-694234 Sat, 13 Jan 2024 20:45:12 +0000 So, I have the Mk4 kit.  When turned with my fingers the Yaxis motor does not turn 360 degrees without meeting resistance, it turns normally for 180degress then gets stiff to turn for 180degrees then normal then stiff etc.... Is this a bad stepper motor?

]]> Hardware, firmware and software help Jay https://forum.prusa3d.com/forum/english-forum-original-prusa-i3-mk4-hardware-firmware-and-software-help/stepper-motor-sticking/#post-694234