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Y axis of Graber vibrates a lot!

Posted by Henrique

Henrique

Y axis of Graber vibrates a lot!
August 06, 2025 08:28AM

Registered: 1 year ago
Posts: 52

I finished mounting my Graber PRO, and it is working quite well.
But I noticed that the Y axis is vibrating a lot, till it maked a lot of noise.
Does anybody know how to fix this?
Is it possible to lubrificate the motor?
If yes, where could I do this? In the pulley?
Thanks!

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Dust

Re: Y axis of Graber vibrates a lot!
August 06, 2025 09:05AM

Admin
Registered: 15 years ago
Posts: 7,319

"Is it possible to lubrificate the motor?" no

Stepper motor have bearings top and bottom of shaft. These are closed and the only part that is lubricated. And no they are not really considered user serviceable.

Y vibration is probably because you trying to accurate a large mass two quickly. loose belts are also a factor.

Edited 1 time(s). Last edit at 08/06/2025 09:05AM by Dust.

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Henrique

Re: Y axis of Graber vibrates a lot!
August 08, 2025 01:48PM

Registered: 1 year ago
Posts: 52

You mean that I have to regulate accelarions and jerk at the slicing software?
Do I have to tighten or loosen the belts?
Thanks!

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Dust

Re: Y axis of Graber vibrates a lot!
August 08, 2025 11:52PM

Admin
Registered: 15 years ago
Posts: 7,319

You have to have the belts tensioned just right, I do not know if your belts are to tight or lose, or just right. I cannot see or test them.

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Henrique

Re: Y axis of Graber vibrates a lot!
August 11, 2025 06:43PM

Registered: 1 year ago
Posts: 52

I have been trying the tension, and I believe I have found the "just right" point.
Thank you!