Showing G53 coordinates

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20 Aug 2021 18:39 #218261 by fernandosf
Please,
How can I see G53 coords on DRO ?
Once I touch-off I cannot go back to visualize G53.

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20 Aug 2021 19:00 #218264 by aleksamc
Replied by aleksamc on topic Showing G53 coordinates
You can look in Tool > linuxcnc status

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20 Aug 2021 19:11 #218265 by fernandosf
Replied by fernandosf on topic Showing G53 coordinates
tool ?

Where in QTPlasmaC ?

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20 Aug 2021 20:01 #218269 by aleksamc
Replied by aleksamc on topic Showing G53 coordinates
Sorry, I didn't saw that it's PlasmaC.
Look somwhere in menu for "linuxcnc status".

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20 Aug 2021 20:38 #218275 by fernandosf
Replied by fernandosf on topic Showing G53 coordinates
There is no menu in QTPlasmaC
but thanks.

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20 Aug 2021 21:30 #218278 by aleksamc
Replied by aleksamc on topic Showing G53 coordinates
You can go another road.
Type in mdi:

G53 G1 X500 Y500 Z 20 (coordinates could be what you wish).

Then when machine moved to that coordinates, make offset for each axis the same as coordinates. 
In such way, you will return to machine coordinates
 

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21 Aug 2021 02:33 #218290 by phillc54
Replied by phillc54 on topic Showing G53 coordinates
If your have another work coordinate sytem that hasn't changed, say G55 you could switch to that with MDI which will show the same as the G53 coordinates then switch back to G54.

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21 Aug 2021 19:41 #218342 by fernandosf
Replied by fernandosf on topic Showing G53 coordinates
@phillc54: wow, that would be easy, never thought of that

@alecsamc: thanks! but can't beat phill's "hack" 

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21 Aug 2021 20:46 #218348 by aleksamc
Replied by aleksamc on topic Showing G53 coordinates
Yes, the reality is a lot of the opportunities...

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21 Aug 2021 23:55 - 22 Aug 2021 00:06 #218360 by beefy
Replied by beefy on topic Showing G53 coordinates
This brings up an interesting question (for me that is) related to the saving of work co-ordinates.

Let's say I put 3 smaller pieces of sheet on the table. I use the cross-hair camera to go to the lower left corner of each one, giving them G54, G55, and G56 work offsets.

I'm in the middle of cutting and bang, a power outage, a PC brain fart, or had to do an e-stop, etc.

Would Qtplasmc have saved all these offsets to disk at the time they were created, so that when I start up the table again, I can simply home the machine and pick up from where the cut stopped.

In my last two softwares there was a toggle button to switch between machine and work co-ordinates. At the very start I'd actually take a photo of the XY machine co-ordinates at the work zero position so I could jog back there after say an e-stop or Z limit trip, and subsequent re-home, and then zero the work offset.
There was also an offsets tab where I could view the active Gxx offsets, plus there was a "Save Offsets" button on this page.

Do we have any such facility in Qtplasmac or should I just use Phil's hack and write down of take a photo of each work offset zero position.

EDIT:
Just been to this page:
linuxcnc.org/docs/2.4/html/gcode_coordinates.html

And read the following:
The values for offsets are stored in the VAR file that is requested by the INI file during the startup of an EMC. 
So it appears that during program start up, the stored offsets are read.
Is this the case with Qtplamac.

Keith
Last edit: 22 Aug 2021 00:06 by beefy. Reason: Extra info to add to post

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