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Z-Axis won't move downwards

http://geeetech.net/forum/viewtopic.php?f=82&t=61272

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Z-Axis won't move downwards

Posted: Mon Jun 11, 2018 2:18 am
by ChaboCC
Hey guys, does anybody have an idea?

My Z-Axis-Motors are moving upwards without problems, but when turning downwards, they make a horrible sound and won't turn. I removed all of the rods, so it's just the motors left. Also, I tried plugging the motors as Y-Axis, there they work without a problem. Is my board broken or is there a way to fix this on my own?

Thanks in advance!!

Re: Z-Axis won't move downwards

Posted: Mon Jun 11, 2018 6:24 pm
by _kaktus_
I sugest to check the order of the wires in the plug.

Re: Z-Axis won't move downwards

Posted: Thu Jun 14, 2018 9:45 am
by Gingko
ChaboCC wrote: ↑
Mon Jun 11, 2018 2:18 am
 Hey guys, does anybody have an idea?

My Z-Axis-Motors are moving upwards without problems, but when turning downwards, they make a horrible sound and won't turn. I removed all of the rods, so it's just the motors left. Also, I tried plugging the motors as Y-Axis, there they work without a problem. Is my board broken or is there a way to fix this on my own?

Thanks in advance!!
Hi,
Have you done the A4988 test?
Switch A4988 of Z-axis with X-axis.
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