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Author Topic: Master Axis and Slave Axis out of sync  (Read 1327 times)

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Master Axis and Slave Axis out of sync
« on: February 26, 2016, 03:15:06 PM »
Let me preface by saying I am an extreme novice with CNC software. I purchased a routing table with mach3 yesterday off of craigslist and was able to get it to run ok, but have been plagued by a slave axis that is about a second behind the master axis. I have been through different pages on this forum already in an attempt to solve the problem but so far have been unable to do so. Any help I could get would be immensely appreciated.

Offline ger21

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Re: Master Axis and Slave Axis out of sync
« Reply #1 on: February 26, 2016, 03:39:14 PM »
Does one side start moving before the other?
Can you explain in more detail exactly what happens?

Go to the Motor tuning and make sure the steps/unit are the same for both the master and slave axis, and make sure the homing speed is the same for both master and slave in Config > Homing/Limits.
Gerry

2010 Screenset
http://www.thecncwoodworker.com/2010.html

JointCAM Dovetail and Box Joint software
http://www.g-forcecnc.com/jointcam.html
Re: Master Axis and Slave Axis out of sync
« Reply #2 on: February 26, 2016, 04:02:01 PM »
Yes one side begins to move about a second before the other. I have checked the tracks, all motor connections and even switched motors, thinking a motor may have been bad. None of these have fixed it. I have also gone through motor tuning and made sure everything is equal and got nothing as well. I am about to try the other thing you suggested
Re: Master Axis and Slave Axis out of sync
« Reply #3 on: February 26, 2016, 04:03:04 PM »
It does this in both directions, however at higher speeds the Y axis will jump back and forth before actually starting.

Offline ger21

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Re: Master Axis and Slave Axis out of sync
« Reply #4 on: February 26, 2016, 04:30:10 PM »
I would guess that it's very unlikely that this is a Mach3 issue. Sounds electrical or mechanical to me.

Are all couplers/setscrews tight?
Gerry

2010 Screenset
http://www.thecncwoodworker.com/2010.html

JointCAM Dovetail and Box Joint software
http://www.g-forcecnc.com/jointcam.html