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What is the working temperature of an original BP Superior stepper motor? I have a problem with repeatability and I have tried about everything to find and duplicate this problem. I have finally slowed my IPM down to 20 IPM to see if I can get a part within tolerance. I did notice that my y motor is usually running hotter than the x. The x motor is at 106 degrees and the y motor will be at 124 degrees. Sometimes they both will get up to 134 degrees. I don't know what temp the motors where running at when I had the IPM up to 40 IPM.
"Perfection is achieved, not when there is nothing more to add, but when there is nothing left to take away." Antoine de Saint-Exupery (1900 - 1944)
Check the current going to the motors in a static state (8.0 amps) and in a running state. At rapid it should drop to about 2 to 2.5 amps. Temp of these motors has never been an issue. The aluminum heat sinks are massive.
Also note that The x axis accels and decels the mass of the table. The Y axis motor moves the mass of the table and saddle thus makes more heat.
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)