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Author Topic: Axis Mixing Issue  (Read 3826 times)

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Re: Axis Mixing Issue
« Reply #10 on: May 30, 2013, 11:44:06 AM »
Ok, after a couple hours of troubleshooting, I am getting a lot of noise from the system. Sometimes when I boot everything up, there is no noise and the motors move very smoothly, or at least, as I would expect. Other times the motor move the correct distances, but not very smoothly. The best way I can describe it is that the motors "chatter" along the rails. Also, the motor will occasionally leap into the smooth operation that I mentioned, and very quickly leap back out causing the gantry to "stutter". I have iterated through quite a bit of motor tuning to mitigate these issues with no luck, so I am thinking its something else. If I tune the motors to move very slowly (<20 in. per min) there is no stuttering or chattering, just lots of static noise. This is most likely because it is moving so slow I can notice it.

To be explicit with the questions...

A) Is it typical for the to be a lot of static noise when none of the motors aren't being utilized?
B) Why are the motors behaving as stated above?

Posted below is a video that demonstrates some of the issues. During the video the motors are not moving very smoothly and some stuttering occurs about 13 sec. into the video. (you can tell from the change in pitch of the motors).

http://www.youtube.com/watch?v=eeYtJVUH3Zc&feature=youtu.be

Offline Hood

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Re: Axis Mixing Issue
« Reply #11 on: May 30, 2013, 01:30:07 PM »
Have you run the driver test to see what it looks like?
Hood
Re: Axis Mixing Issue
« Reply #12 on: May 30, 2013, 09:31:22 PM »
I don't know what you are referring to.

Offline Chaoticone

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Re: Axis Mixing Issue
« Reply #13 on: May 30, 2013, 10:39:32 PM »
If you go to your C:/Mach3 folder you will find in it a file named drivertest.exe  Click it and it will run.  Will need to right click and run as administrator if useing Windows 7.

Brett
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Re: Axis Mixing Issue
« Reply #14 on: June 04, 2013, 10:58:39 PM »
I ran the driver. The test results were the best for 100kHz, and fairish for 25kHz. I selected the 100kHz kernel option in "Ports & Pins" with no improvement in the result. Any ideas? I am using a Mach3 demo, just to make sure everything works, but I think I remember reading somewhere that the demo only allows the user access to the 25kHz kernel. The program allowed me to select the 100kHz kernel, so I ASSUME it is allowing me to utilize the option. Is this a good assumption?