Dim3nsioneer 557
It is indeed a bit strange that the UM3 stays dead after a power cut. I could imagine it does this after a voltage spike or rather the PSU does this but then it would come back after a while and certainly cannot be reanimated by using the main switch of the printer. Are you sure no other fuse or similar in your house was involved? The power switch was still on, the PSU had power and the printer did nothing, no fan, no led, no display?
The question about the UPS cannot be answered with a simple yes or no. It strongly depends where you living, i.e. how stable your power grid is. In some locations you might not be able to print even an Ultimaker robot without power cut while here in Switzerland where I live, I think I had only one case of a very short power cut which stopped a printer in four years.
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kmanstudios 1,120
Always use any electronics with a battery backup/uninterruptible power supply. While power surges can be bad, they usually only trip the sensors and do what you describe. although, if it is bad enough, it can fry a circuit or two.
But, the dips in power availability can be just as bad or worse as it will not trip anything, but let the machine run on less than optimal power. The combination of dips and peaks in your power consumption can damage things in the long run.
Something that passes the power through a battery, or 'conditions the power' to a much more constant sine wave and it makes your equipment much more stable and happy.
It does not take much to trip something too. I had a brownout a while back, which forced me to dig out my old APC unit and it was not the brownout that caused it to trip, it was the sudden surge when it kicked back up.
Now, I just hear a beep every now and then on the APC when the power goes wonky, but my printer hums along without a blip. And, it does help prolong the life of electronics and cut down on electrical noise in the environment that can interfere with other aspects of electronics.
Now, this is how it was explained to me in the dark ages of computing when Dino ran on a treadmill to give me power, and I am very open to a more concise or revised explanation/correction, but the short answer is "Yes, absolutely!"
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