Replace X axis motor with different model Last week, my X-axis stepper motor died. It was a 42SHD0217-24B model. I ordered the same online, but the vendor made a "mistake" and sent me the 17HS3401S model. I know these motors use a different voltage, so I adjusted the screw on the stepper driver and managed to get a smooth rotation with the new model. I know that these 2 motors have a rotation of 1.8° per step. My questions are the following: * Since they have the same rotation angle per step, I shouldn't have to calibrate the new model, right? (I'll use the original wheel) * Did the vendor send me a motor with inferior performances? * Will my performances degrade if I use the new motor? (Lecture on motors appreciated). By that I mean: will my top moving speed be affected? Will the motor miss more steps at high speed?

> Since they have the same rotation angle per step, I shouldn't have to calibrate the new model, right? (I'll use the original wheel)

Yes, you do not have to change anything, other than the Vref of the stepper driver.

> Did the vendor send me a motor with inferior performances?

Yes, the one you received has a lower height, so smaller coils and smaller permanent magnets; basically lower torque.

> Will my performances degrade if I use the new motor?

That depends on the loading of the carriage of the X-axis, it could if it is heavy; you now have less torque available to move the carriage. But, this type is frequently found in 3D printer kits and should work.