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[FIXED] "burping" noise from Y-axis motor

Posted: Sat Jul 18, 2015 8:35 am
by WayOutWest
Hi, I can't really come up with a good way to describe this other than the Y-axis belt making a "burping" noise and then the machine loses track of its position on the Y-axis. The video below does a better job of explaining. How do I fix this? The machine gets "lost" after two or three motions and is unusable...

Re: "burping" noise from Y-axis motor, loses track of positi

Posted: Sat Jul 18, 2015 9:55 am
by mawa
Tow possible causes:
1. too low motor current
2. too tight Y belts

Re: "burping" noise from Y-axis motor, loses track of positi

Posted: Sat Jul 18, 2015 10:04 am
by WayOutWest
Hrm, the forum isn't letting me upload the video... I've emailed it to Juha, hopefully he can post it.

Re: "burping" noise from Y-axis motor, loses track of positi

Posted: Sat Jul 18, 2015 10:15 am
by WayOutWest
mawa wrote: 2. too tight Y belts
Thanks mawa, this was the problem!

There was too much mismatch in the tightness of the two Y-belts. The left one was very tight and the right one was very loose.

Re: "burping" noise from Y-axis motor, loses track of positi

Posted: Sat Jul 18, 2015 11:44 am
by JuKu
WayOutWest wrote:Hrm, the forum isn't letting me upload the video... I've emailed it to Juha, hopefully he can post it.
The forum restrictions for this and other similar stuff are off. I don't know why attaching a video does not work. :-( Maybe it is a BlueHost thing?

Anyway, I'm glad you got helped before I even saw your message.

Re: "burping" noise from Y-axis motor, loses track of positi

Posted: Mon Jul 20, 2015 2:46 am
by WayOutWest
JuKu wrote:
WayOutWest wrote:Hrm, the forum isn't letting me upload the video... I've emailed it to Juha, hopefully he can post it.
The forum restrictions for this and other similar stuff are off. I don't know why attaching a video does not work. :-( Maybe it is a BlueHost thing?
It is the same file size restriction that thereza ran into here.

Re: [FIXED] "burping" noise from Y-axis motor

Posted: Wed Oct 19, 2016 3:01 am
by dmwahl
I also had that problem when the acceleration and speed were too high for an axis.