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SOLVED UM2 PID Autotune failed


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Posted · SOLVED UM2 PID Autotune failed

Just found out another method to solve this issue. I have used 40w heater on my ultimaker2+ and marlin firmware v17. The autotune of hotend failed every time due to heat up too fast and temperature overshot. My method is simple, just use a fan to cool it down when running autotune on first time almost trigger the over heat alert (default setting is 150c 5 times). Don't let it over heat at first time. It will more stable on 2-5 times.

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