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Making loud noise when starting a print

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Posted (edited) · Making loud noise when starting a print

My printer is making a very loud noise when i am staring a print. 

Noise does not occur when:
- Bed raising

- Bed lowering

- Home head

Noise does occur when:
- Printer is heated up, output the first plastic and move towards the starting point of the print.

Another problem that also occur somethimes is that the heated bed is not very good calibrated anymore after the loud noise. But i am not sure about this problem, if it is the case after my loud noise or it can be just some adhesion problem that occured at the same time.

I have placed a video of the sound on youtube: https://youtu.be/gOtlLcv7vpU


Edited by jechsturk
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    Posted (edited) · Making loud noise when starting a print

    It sounds like the gears or belts may be grinding. Check that those and the rods are clean, and if not, clean them. It may also help to grease the bearings a little bit. How long have you been using this printer? It might just be old and the grease has dried up or too much dust has collected on the rods or lead screws. I would just give cleaning a try! Hope this helps!

    Edited by buglykitty
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    • 1 month later...
    Posted (edited) · Making loud noise when starting a print

    For people that were curious about the problem and solution:

    The problem was inside one of the xy stepper motors. Some dust from the wear of the pulleys dropped into the bearings inside the stepper motor. I have disassembled both xy stepper motors and replaced the bearings (2 per motor, 4 in total) and cleaned the inside of the stepper motors. It is very important that there is no greace or dust inside it when reasembling! This fixed the problem and my stepper motors are running smoothly again.


    @buglykitty, the printer was running for like 3000 hours, FYI.

    Edited by jechsturk
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