knocking noise from Z axis stepper motor February 01, 2014 10:12PM |
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Re: knocking noise from Z axis stepper motor February 02, 2014 05:37AM |
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Re: knocking noise from Z axis stepper motor February 02, 2014 07:09AM |
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Re: knocking noise from Z axis stepper motor February 02, 2014 08:20AM |
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Quote
tru168
Hi Erik,
I'm thinking of doing so, but a little worry if I can't fix it, and support might not accept it for warranty. I'm in Asia country, replacement motor will take ages to arrive here. If support agree to let me open it up, I will be happy to do so.
Ew
Re: knocking noise from Z axis stepper motor February 02, 2014 08:43AM |
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Re: knocking noise from Z axis stepper motor February 02, 2014 11:12AM |
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Re: knocking noise from Z axis stepper motor February 02, 2014 10:59PM |
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Re: knocking noise from Z axis stepper motor February 03, 2014 08:58AM |
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Re: knocking noise from Z axis stepper motor February 03, 2014 09:57AM |
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Re: knocking noise from Z axis stepper motor February 03, 2014 10:38AM |
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Re: knocking noise from Z axis stepper motor February 03, 2014 10:39AM |
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Re: knocking noise from Z axis stepper motor February 03, 2014 10:43AM |
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Re: knocking noise from Z axis stepper motor February 03, 2014 10:55AM |
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Re: knocking noise from Z axis stepper motor February 03, 2014 10:57AM |
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Re: knocking noise from Z axis stepper motor February 03, 2014 11:16AM |
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Re: knocking noise from Z axis stepper motor February 03, 2014 12:07PM |
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Quote
tru168
.... enter command G1 Z100 and let the stepper spin, and lightly hold the motor shaft, you can feel knocking vibration in the motor....
Re: knocking noise from Z axis stepper motor February 03, 2014 09:11PM |
Registered: 10 years ago Posts: 176 |
Re: knocking noise from Z axis stepper motor February 04, 2014 12:11AM |
Registered: 10 years ago Posts: 176 |
Re: knocking noise from Z axis stepper motor February 04, 2014 08:04AM |
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Re: knocking noise from Z axis stepper motor February 04, 2014 08:28AM |
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Quote
tru168
Now I can print again, and I noticed a new problem , I think its bug or something related to firmware. When I run M556 S78 X-0.05 Y-0.4 Z-0.6 command in setbed.g to correct angle shift , I still can hear some minor knocking sound when I send G1 Z50 to raise the Z axis.. it run smoothly/ quietly without loading the M556 angle shift correction command.
Re: knocking noise from Z axis stepper motor February 22, 2014 12:57PM |
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Re: knocking noise from Z axis stepper motor February 22, 2014 03:41PM |
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Re: knocking noise from Z axis stepper motor February 22, 2014 06:22PM |
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Re: knocking noise from Z axis stepper motor February 23, 2014 07:10PM |
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Quote
dc42
Quote
tru168
Now I can print again, and I noticed a new problem , I think its bug or something related to firmware. When I run M556 S78 X-0.05 Y-0.4 Z-0.6 command in setbed.g to correct angle shift , I still can hear some minor knocking sound when I send G1 Z50 to raise the Z axis.. it run smoothly/ quietly without loading the M556 angle shift correction command.
I'm not surprised. The current firmware is unable to do combined XYZ or XZ or YZ movements properly. I understand Adrian Bower is working on this. There is an update in the Duet branch of the firmware, with a comment saying that it is still buggy and should not be used. I suspect the knocking sound is caused by the firmware trying to step the z-motor too quickly.
Re: knocking noise from Z axis stepper motor February 24, 2014 02:50AM |
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Re: knocking noise from Z axis stepper motor February 24, 2014 03:56AM |
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Quote
dmould
He's not doing an XYZ movement, he is setting the axis compensation which does not involve any movement (and should have all parameters on one line). He hears the noise after sending G1 Z50 after axis compensation is set, which ought to work fine. I wonder whether the noise is coming from the X or Y motors in that case - because the only difference should be that a Z move could also cause an X and/or Y move after compensation has been applied, but not before?
Re: knocking noise from Z axis stepper motor February 24, 2014 12:53PM |
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Quote
dc42
Quote
dmould
He's not doing an XYZ movement, he is setting the axis compensation which does not involve any movement (and should have all parameters on one line). He hears the noise after sending G1 Z50 after axis compensation is set, which ought to work fine. I wonder whether the noise is coming from the X or Y motors in that case - because the only difference should be that a Z move could also cause an X and/or Y move after compensation has been applied, but not before?
If he's got nonzero axis compensation set, then he is doing a combined XYZ movement even when he's only asking for an XY or Z movement. The current firmware does seem able to cope with small amounts of compensation. I recommend ensuring that the Z axis is truly perpendicular to the Y axis, levelling the bed manually as far as possible, then using the auto compensation (if it is working reliably for you) as a fine correction.
Re: knocking noise from Z axis stepper motor February 24, 2014 01:21PM |
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Re: knocking noise from Z axis stepper motor February 24, 2014 02:08PM |
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Quote
dc42
The firmware copes with internally-generated XYZ movements when the amount of correction is small, so you have either an XY move with a very small amount of Z, or a Z move with a very small amount of XY. Maybe the Y-0.4 correction he is making is too large for it to handle well. I'll take a look later in the week.
Re: knocking noise from Z axis stepper motor April 17, 2014 03:22PM |
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