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The horrible "machine gun" noise happens when the stepper "skips" steps. It's a magnetic thing and although it sounds horrible your printer should be fine. All the mechanical parts are stronger than the maximum force from the steppers.
If you power off and one axis is stuck then you have a serious mechanical problem. I've seen this when sugar water, candy, glue, glue stick, or hair spray gets on the shafts but it could be many causes. I recommend you start taking it all apart. Loosen the 4 pulleys for the bad axis. Completely pop out the two shafts that go through the head and put the head aside somewhere. Try to figure out if a shaft won't turn or more likely if one or two blocks won't slide along one of the outer shafts in the gantry.
It could be as simple as LED wiring caught in the belt/pulley system.
If you printer is very new, you could try warranty service with your reseller but this printer is meant to be taken apart somewhat. Certainly the gantry isn't too hard. If you take apart one of the 4 slider blocks however be very very careful. Those are easily destroyed (replacements are very cheap but who wants a "down" printer while waiting for replacement). So pry those open very gently.
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Another Cura release has arrived and in this 5.8 beta release, the focus is on improving Z seams, as well as completing support for the full Method series of printers by introducing a profile for the UltiMaker Method.
We are happy to announce the next evolution in the UltiMaker 3D printer lineup: the UltiMaker Factor 4 industrial-grade 3D printer, designed to take manufacturing to new levels of efficiency and reliability. Factor 4 is an end-to-end 3D printing solution for light industrial applications
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gr5 2,210
The horrible "machine gun" noise happens when the stepper "skips" steps. It's a magnetic thing and although it sounds horrible your printer should be fine. All the mechanical parts are stronger than the maximum force from the steppers.
If you power off and one axis is stuck then you have a serious mechanical problem. I've seen this when sugar water, candy, glue, glue stick, or hair spray gets on the shafts but it could be many causes. I recommend you start taking it all apart. Loosen the 4 pulleys for the bad axis. Completely pop out the two shafts that go through the head and put the head aside somewhere. Try to figure out if a shaft won't turn or more likely if one or two blocks won't slide along one of the outer shafts in the gantry.
It could be as simple as LED wiring caught in the belt/pulley system.
If you printer is very new, you could try warranty service with your reseller but this printer is meant to be taken apart somewhat. Certainly the gantry isn't too hard. If you take apart one of the 4 slider blocks however be very very careful. Those are easily destroyed (replacements are very cheap but who wants a "down" printer while waiting for replacement). So pry those open very gently.
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