I do same thing with an workaround:
Set G59.2 with offset 0/0/0. Then you can access the G59.2 values which
are in fact machine coordinates. Of course you loose one
coodinate-system. My usage is to calculate the maximum way to drive for
G38.2/4 moves where a fixed value is a bad idea if you are near to end
of a axis.
Greets, Freisei
Am 26.07.2021 um 19:31 schrieb Feral Engineer:
That's not what I'm looking for.
I can position with G53, but I want to read that G53 position into a
variable. On fanuc and mits controls, machine position for X is #5021 and
absolute position for X from current offset is #5041, much like how skip
position is #5061. When you're writing macro programs for things, sometimes
you want to do calculations from current abs position and relate it back to
machine coordinate. Only way I can do it currently is store the values i
want in an ini (tool setter position, etc) and access it that way, which is
fine for static values, but sometimes you want to capture a current machine
position in real time for the macro calculations.
An example would be setting a work offset:
G10 L2 P1 X#5021 Y#5022
Phil T.
The Feral Engineer
Check out my LinuxCNC tutorials, machine builds and other antics at
www.youtube.com/c/theferalengineer
Help support my channel efforts and coffee addiction:
www.patreon.com/theferalengineer
On Mon, Jul 26, 2021, 1:00 PM Nicklas SB Karlsson <n...@nksb.eu> wrote:
5420 gives me current position from my work offset zero. I want current
position from my machine home (g53) position
Then you use "G53 Move in Machine Coordinates"? Or?
Phil T.
The Feral Engineer
Check out my LinuxCNC tutorials, machine builds and other antics at
www.youtube.com/c/theferalengineer
Help support my channel efforts and coffee addiction:
www.patreon.com/theferalengineer
On Sun, Jul 25, 2021, 5:02 PM <fr...@franksworkshop.com.au> wrote:
Isn't that #5420?
-----Original Message-----
From: Feral Engineer <theferalengin...@gmail.com>
Sent: Sunday, 25 July 2021 7:39 AM
To: EMC developers <emc-developers@lists.sourceforge.net>
Subject: [Emc-developers] Question for the devs
Hello devs,
I have a question. In Fanuc land, #5021 is the X axis system variable
for
machine home position (axis 1, really), 5022 is axis 2, etc. Linuxcnc
does
not have these variables. I'm wondering how hard it would be to add
them?
Having access to the machine coordinate system is helpful in writing
logic
for various things (as is goto, but I'm not pressing my luck). Unless
there's an alternate variable I could use, like #<_axis_1_mach_pos>
something like that? Also, not sure how familiar you guys are with G65
and
G66 macro calls. Is this something up for consideration in the future?
Just
curious is all. I'm a macro maniac.
Tyia
Phil T.
The Feral Engineer
Check out my LinuxCNC tutorials, machine builds and other antics at
www.youtube.com/c/theferalengineer
Help support my channel efforts and coffee addiction:
www.patreon.com/theferalengineer
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Nicklas SB Karlsson <n...@nksb.eu>
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