Oh I just remembered - I have a UMO that was upgraded with heated bed kit - that version can use 2 power supplies but the UMO+ is quite different and only uses one power supply.
Ultimaker in the past has bought 2 meanwell power supplies:
GST220A24-R7B
GS220A24-R7B
The one without the T is better - it can deliver more power (even though they are both rated the same).
It could be that your power supply is getting old or it could be that you have more friction on your rods which draws more current. I hooked up a current meter to my UM power supply once and when I fought the print head the current/power usage went up noticably. Try adding a drop of oil to each rod.
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gr5 2,224
I'm thinking it's the power supply. Does it act the same as if you turned it off and then on?
These power supplies are "smart". They have little computers in them. If things overheat or if there is too much current drawn for too long then they cut the power. Only a fraction of a second. But enough to reboot the arduino.
I seem to vaguely remember you can run the UMO+ with both power supplies at once? Maybe not? I forget.
Try a print where you use only blue tape and no heated bed.
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