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Author Topic: Gantry Racking  (Read 3065 times)

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Offline ger21

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Re: Gantry Racking
« Reply #10 on: March 16, 2015, 07:16:38 PM »
No, the slave axis is always slaved to the master, whether you have switches or not.

I believe what you are referring to is auto squaring the gantry. If you use a separate home switch for the Y and A axis, then Mach3 will unslave the axis while homing, allowing each side to home to it's own switch, squaring the gantry during homing. The axis are then re-slaved after homing.
But if you only use one switch, or no switches, the slave is always synced with the master.
Gerry

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Re: Gantry Racking
« Reply #11 on: March 16, 2015, 08:01:14 PM »
Ok thanks. Can I connect both motors to one driver say the Y axis? would this solve my problem?
Regards
Charlie M.

Offline ger21

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Re: Gantry Racking
« Reply #12 on: March 16, 2015, 08:04:24 PM »
No, I wouldn't try that.

Did you change the pulse with as I suggested?

If that doesn't help, you might want to uninstall and reinstall Mach3 and see if that helps.
Gerry

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

JointCAM Dovetail and Box Joint software
http://www.g-forcecnc.com/jointcam.html
Re: Gantry Racking
« Reply #13 on: March 17, 2015, 05:13:12 AM »
 Hi Gerry,

           I did change the pulse width, but it made no difference. If I reinstall mach3 do I need to back up my xml file?
Regards
Charlie M.
Re: Gantry Racking
« Reply #14 on: March 17, 2015, 06:22:14 AM »
ok so I reinstalled mach and I get the same behavior. I can see a delay between the Y axis motor and the A axis motor. Now I just need to figure out why. I think I will look into a different driver board.
Regards
Charlie M.
Re: Gantry Racking
« Reply #15 on: March 17, 2015, 07:43:11 AM »
Hi Charlie,
  Are you sure that the set screws are tight on all components of the trailing axis ?

Is the motor possibly stepping as commanded, but not transferring the movement to the gantry on the trailing side ?

If you swap the motor wiring from Y to A, would the opposite side be affected ?

Just something to check.
Russ
Re: Gantry Racking
« Reply #16 on: March 17, 2015, 05:53:52 PM »
 OK So I started messing around with the wiring and I have a bad motor. I took a ohm reading on the different coils and they are all in the meg ohm range >:D. Gotta to love Chinese crap.
Regards
Charlie M.