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frank-pitkat

Drive Motors Hot

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Which sort of printer is it?

Either way, it's probably not a major issue. The temperature of stepper motors is related to the current that they are fed, and not the amount of physical 'work' that they do moving stuff. Even when they aren't turning, they are burning energy holding the coils locked in place until they are next told to move.

They're also designed to get quite hot, without a problem. If you are concerned, you could potentially adjust the current settings - this is done by adjusting potentiometers on the stepper drivers on a Ultimaker Original, and by using the Maintenance -> Advanced -> Motion Settings menu on a Ultimaker².

But it's probably not something to worry about if the printer seems to be printing ok.

 

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