Just running another test without the smoothers. And the temperature of the bottom side of the board (under the stepper drivers) is the same, you can't touch it.
I did some tests with my cheap Seek addon from iphone (the old model) and the temperature with and without is around 10-25C higher with the smoothers after 1h of print time.
Also indeed doesn't make sense to add smoother if you already did the complex solder fix. You are just changing the stepper waves and it might add errors like you get.
Edit. Also as a general rule for um2/um2+ boards is a good idea to add a heat sink for on the stepperchips since they have poor natural heat sink on the plastic cage. For example for UM3 Ultimaker changed how the board is aligned (flipped 180 degrees like on UMO+) and added a grey sticky thing that heatsinks the back of the stepper chips into the aluminium frame.
Edited by Guest
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conny_g 251
Just running another test without the smoothers. And the temperature of the bottom side of the board (under the stepper drivers) is the same, you can't touch it.
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