Nema 11 stepper motor heat-sink or not

Support Motor controllers/drivers and motors
1

I am using your https://www.pololu.com/product/1205/resources with microstepping through a 90° sweep taking three minutes, for 8 hours a day, back and forth, continuously (part of an art installation). I measured 82°C on the exterior of the stepper motor while in use. Is this okay, or must I attach a heat-sink to its bottom (which would increase the height off the total assembly)?

Thanks!

2

Hello,

That temperature does not seem too hot for those conditions and you should not need to add any heatsink as long as you are limiting the current to the 670 mA per phase the stepper motor is rated for or lower.

-Derrill

3

Thanks, that’s good to know. It actually even runs with a bit less current.