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This is a common problem. It's almost always the power brick. If the brick senses that you used too much power it shuts off. But only for about 1/4 second and then power comes back on. This appears to be a plain old reboot but is really a power off/on very fast.
If this printer is less than a year old I would try to get a free one from your supplier. If not you can just buy the power brick.
Until you get the new brick you can avoid using the bed and instead use a cold bed and blue tape washed with isopropyl alcohol. Your printer should have come with blue tape for this purpose.
Alternatively you can use the power budget feature in tinker marlin which is a fantastic alternative firmware for um2+ extended. You can download it here (you want the 5th one down of course):
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gr5 2,330
This is a common problem. It's almost always the power brick. If the brick senses that you used too much power it shuts off. But only for about 1/4 second and then power comes back on. This appears to be a plain old reboot but is really a power off/on very fast.
If this printer is less than a year old I would try to get a free one from your supplier. If not you can just buy the power brick.
Until you get the new brick you can avoid using the bed and instead use a cold bed and blue tape washed with isopropyl alcohol. Your printer should have come with blue tape for this purpose.
Alternatively you can use the power budget feature in tinker marlin which is a fantastic alternative firmware for um2+ extended. You can download it here (you want the 5th one down of course):
https://github.com/TinkerGnome/Ultimaker2Marlin/releases/
Go into power budget. I believe for normal printer you want:
budget 180W
bed 150W
nozzle 30W
With the above settings the budget will never limit power. so then you just lower the budget a bit:
budget 160W
bed 150W
nozzle 30W
That should be plenty to avoid tripping the power brick.
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