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X Axis Motor / Belt Tension Issue  

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Rysten
(@rysten-2)
Eminent Member
X Axis Motor / Belt Tension Issue

Hello,

I was having an issue with repeated X axis crashes during some prints about a year ago. I did a belt tension check and it was ~340. Unfortunately the printer was set aside at that point with no further troubleshooting until recently. I took things apart to adjust the belt, but if I loosen the belt enough to bring the the tension to ~370, it is loose enough to actively skip over teeth and sags (no tension at all). I checked the rod, bearings, belt gear alignment, everything moves easily until the belt is reattached to the motor. Then the x-axis movement feels stiff/has resistance. I haven't seen anything for motor maintenance. Is this an issue with the X stepper motor or is this something I can just let run if test prints come out without issue (I don't believe I tested other prints to confirm it wasn't an issue with the model)?

Napsal : 04/11/2024 2:28 pm
Robin
(@robin)
Noble Member
RE:

Try this on your phone: https://belt.connect.prusa3d.com/

It's much more precise than the belt tension function of the printer firmware.

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Napsal : 04/11/2024 3:57 pm
Rysten
(@rysten-2)
Eminent Member
Topic starter answered:
RE: X Axis Motor / Belt Tension Issue

That said it was too tight, I get a bit more of a rattle (that an strum/twang like the y axis) when I try to strum it. Barely feels like any tension at all. But if I loosen the belt another tooth it literally skips teeth when it moves due to no tension. Either I am doing something completely wrong or the problem lies elsewhere... Printer has 54d 15hr print time over the past 6 years.

Posted by: @robin

Try this on your phone: https://belt.connect.prusa3d.com/

It's much more precise than the belt tension function of the printer firmware.

 

Napsal : 05/11/2024 1:34 am
Rysten
(@rysten-2)
Eminent Member
Topic starter answered:
RE: X Axis Motor / Belt Tension Issue

Because it won't let me edit post: I have also minimized the tension adjust at the motor as well.

Napsal : 05/11/2024 2:59 am
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