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X-Axis Vibration/Grinding Problem

Posted by nefermu

nefermu

X-Axis Vibration/Grinding Problem
December 26, 2012 01:42AM

Registered: 12 years ago
Posts: 34

Last night I got a new problem with X Axis, During printing or just at the very begining of printing X-axis motor starts to vibrate on +/- direction (with very unsual noise like grinding, cutting metal) and loses the x axis position. Problem seems to be random. Can it be realted with loose connections ?
I use sanguino, marlin, aluminum T2.5 pulleys,

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stephenrc

Re: X-Axis Vibration/Grinding Problem
December 26, 2012 05:13PM

Registered: 12 years ago
Posts: 548

Belt tension too high.
Insufficient current to the steppers, you'll have to increase the current setting on the drivers.
Binding in the x-axis, which can be caused by insufficient lubrication on whatever the x-axis rides on.

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Greg Frost

Re: X-Axis Vibration/Grinding Problem
December 26, 2012 05:44PM

Registered: 13 years ago
Posts: 486

I have blown up half a pololu and it sounds like that. One of the failure modes is for the drive for only one of the coils to blow. When that happens the motor jumps around aggressively in no particular direction making a horrible noise.

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Enlightx

Re: X-Axis Vibration/Grinding Problem
December 26, 2012 06:40PM

Registered: 11 years ago
Posts: 329

Yeah i had a faulty pololu as well once works okay but steppers sounded very very rough and grinding.

i email supplier and they said they get a fair few of them faulty like this and just sent me a replacement.

try changing your X and Y pololu drivers over (Unplug power 1st !) if noise moves to Y axis then driver is the problem smiling smiley

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nefermu

Re: X-Axis Vibration/Grinding Problem
December 27, 2012 09:45AM

Registered: 12 years ago
Posts: 34

I have solved the problem molex connector were arcing and this was causing problems.

thanks for all support