Weird machine coordinates issue

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Weird machine coordinates issue

Postby Parkgrr » Tue May 04, 2021 11:53 pm

Hey folks,

I'm running into an issue, I'm really new to this so I'm guessing it's user error but am not sure how to proceed.

I ran into the issue the first time when setting soft-limits for Y for the first time. Y upper soft limit should be 147.77. However to get the gantry to stop at that point I have to enter the value "1462" in the soft limits field in the axis configuation.

Additionally, as I've been writing macros the values presented for Y moves within the macro have wacky values as well. For example I'm programming a tool touch off macro and in order to get Y to move to 85.77 I have to give the command "G00 G53 Y1400" rather than "G00 G53 Y85.77"

Oddly, when I type in "Y125" into the terminal Y goes to 125 no problem, same with G0 Y125. However when using a G53 command like "G0 G53 Y125" it wants to run into the hard stops.

All other axis act normally with all of these commands including G53.

Can anyone clue me in on what I'm missing here?
Parkgrr
 
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Re: Weird machine coordinates issue

Postby cncdrive » Wed May 05, 2021 3:40 am

G53 is movement in machine coordinates, so if you have offset then it will move different to what is in the offset coordinate system.
You can switch the position DRO to machine coordinates view to see what is going on.
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Re: Weird machine coordinates issue

Postby Parkgrr » Wed May 05, 2021 5:31 am

Thanks very much for getting back.

I checked the offsets tabs and sure enough I had a work offset set for Y under G54. I've cleared all work offsets in all tabs G54 - 59. After doing that I set "Write offset on homing" to 0 for the troubled axis (Y). After doing that I selected Home All, after the machine did its full homing routine it sets Y's machine coords and 'regular' coords to 1321.6813. I can't seem to get it to set Y=0 when it hits home.(As far as the machine moves to my eye Y is homing normally). All other axis' are setting to 0 when they hit home.

Thank you for helping out. I'm sure I've got something goofy, I can't seem to figure what it is using just the manual.
Parkgrr
 
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Re: Weird machine coordinates issue

Postby Parkgrr » Wed May 05, 2021 5:48 am

This axis is my gantry-bound axis and has 2 homing sensors. I'm guessing the issue lies there. Going to look into it and will get back.
Parkgrr
 
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Re: Weird machine coordinates issue

Postby Parkgrr » Wed May 05, 2021 5:56 am

Nevermind, no solution there. Both sides are homing happily. It just seems that when they're done Y still zeroes to 1321.6813.
Parkgrr
 
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Re: Weird machine coordinates issue

Postby Parkgrr » Wed May 05, 2021 6:00 am

:roll: I didn't have auto-set selected on Y...... Thanks everybody I'll be here all week.

:shock:
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