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Author Topic: Problem while setting Homing Offset in Mach3  (Read 204 times)

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Problem while setting Homing Offset in Mach3
« on: November 25, 2018, 09:33:16 AM »
Hi everybody,
I set up my CNC machine with Mach3 and almost everything works just fine, but I can't figure out how to offset the homing endstop zero.
Right now the homing system works fine except for the fact that I would like to have the Y machine coord set to 600 when endstop is reached, during axis referencing, instead of 0.
I already tried to set the "Home Off." to 600 (in Config -> Homing/Limits), but this doesen't seem to have an effect at all.
I don't know if I'm doing something wrong or if it's kind of a bug in Mach3.

Thanks in advance

Offline ger21

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Re: Problem while setting Homing Offset in Mach3
« Reply #1 on: November 25, 2018, 10:04:42 AM »
If you are using a motion controller, rather than a parallel port, it could be that your controller does not support the Home Offset option.
Gerry

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Re: Problem while setting Homing Offset in Mach3
« Reply #2 on: November 25, 2018, 05:20:44 PM »
Yes, I'm using an ethernet controller.
Is there any way to fix it? Maybe with a macro, or by editing the script for the ref button? Can a macro directly modify machine coords?
Re: Problem while setting Homing Offset in Mach3
« Reply #3 on: November 25, 2018, 05:48:34 PM »
Hi,

Quote
Yes, I'm using an ethernet controller

What controller? What make? What model?

As Gerry points out homing offset is done by the controller....I don't think there is a way to overwrite the machine coordinates.

Craig
My wife left with my best friend...
     and I miss him!
Re: Problem while setting Homing Offset in Mach3
« Reply #4 on: November 25, 2018, 05:54:43 PM »
Hi,

Quote
Yes, I'm using an ethernet controller

What controller? What make? What model?

As Gerry points out homing offset is done by the controller....I don't think there is a way to overwrite the machine coordinates.

Craig

Novusun NVEM 5 axis

Offline ger21

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Re: Problem while setting Homing Offset in Mach3
« Reply #5 on: November 25, 2018, 07:23:19 PM »
Quote
Is there any way to fix it?

Buy a controller that supports all of Mach3's functions. Most if not all Chinese boards do not.
Gerry

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

JointCAM Dovetail and Box Joint software
http://www.g-forcecnc.com/jointcam.html
Re: Problem while setting Homing Offset in Mach3
« Reply #6 on: November 27, 2018, 01:10:45 PM »
In the OEM DROs list there is a group called Coordinates Machine ABS (from 83 to 88), but apparently using a SetDRO or a SetOEMDRO on one of theese doesn't do anything.
Could they be in a sort of read-only mode?