Z Motors too hot comparing with X Motor
I just ended a print of around 2 hours, and by chance I noticed that the Z motor were hot (I will test with a IR camera) compared to the X motor.
The X motor was probably 40°C but the Z motors were probably 60°/65°.
That sound strange to me. How is it possible ? I would expected that the Z motors that do a very little movement and divide by two the effort of raising the X axe were very less stressed that the X motor that goes left and right for all the print. I did not had the chance to test the Y motor.
- Any clue ? May be the FW uses to much current in the Z motors.
- Did you notice the same in your MK4S ?
Regards
RE:
This is not a strain on the motor by movement at all, here it is quite the opposite. The coils of the Z motors are powered by essentially direct current, because they are almost at rest all the time, unlike the other motors (X and Y) where the power supply to the coils changes rapidly during movement. In addition, the Z motors are turned on the entire time the printer is turned on without printing. This is to avoid disrupting the synchronization of the two Z-axis screws, because these screws are not self-locking, and when turned off they can move separately and independently of each other. And that is why it is also good to have the G162 Z code inserted in the starting Gcode before the G28 homing, which will perform the Z axis alignment before each print, especially when you turn off the printer with the main switch. This also eliminates the sometimes frequent multiple probing of the substrate in the vicinity of one point.