Programmed Feed Rate

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08 May 2018 04:14 #110366 by 64dodge
64dodge created the topic: Programmed Feed Rate
I have been using a pyvcp side panel that shows the hy spindle speed
with rs485 that I had found while searching through post here on LinuxCNC.

Found a few posts on here about cycle timers that I am going to
try to get working in it.

But would really like to get the programmed feed rate to show in there also.
Or some where in Axis.
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09 May 2018 22:01 #110464 by andypugh
andypugh replied the topic: Programmed Feed Rate
Axis has a "show velocity" option in the View menu. Or is this not what you want?
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10 May 2018 04:19 #110487 by 64dodge
64dodge replied the topic: Programmed Feed Rate
I haven't seen that. I will take a look.
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10 May 2018 12:46 #110506 by Todd Zuercher
Todd Zuercher replied the topic: Programmed Feed Rate
However it is not shown if the show offsets option is chosen
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11 May 2018 02:20 #110558 by 64dodge
64dodge replied the topic: Programmed Feed Rate
Yes I messed with it this evening after work and thats what I found out.

But what I originally wanted to know is if pyvcp could pickup the F? feedrate
from the program and display it in the side panel.

I know this is past my abilities to do now but was just curious.
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11 May 2018 04:16 #110568 by cmorley
cmorley replied the topic: Programmed Feed Rate
To have pyvcp display feed rate would require you to make a user program that put the current feed rate on a HAL pin and then connect that to a pyvcp HAL pin.

linuxcnc.org/docs/2.7/html/config/python-interface.html

Chris M
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11 May 2018 12:45 #110576 by andypugh
andypugh replied the topic: Programmed Feed Rate
I don't know if the linuxcnc.stat() structure has the feedrate in, I think that might just contain the feed override value and the current velocity.

The F-value _is_ available as a G-code parameter: #<_feed>
But it isn't trivial to get a parameter into a GUI display.
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11 May 2018 13:32 #110577 by Todd Zuercher
Todd Zuercher replied the topic: Programmed Feed Rate
it is "supposed" to be available in linuxcnc.stat() under settings. But it doesn't work as advertised and hasn't since the new trajectory planer. The problem is it shows the feed setting at the end of the read ahead which most of time just reads zero for the end of the file. (This seems like a bug that ought to be fixed.)
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11 May 2018 14:53 #110581 by Mike_Eitel
Mike_Eitel replied the topic: Programmed Feed Rate
Yes, Todd that is true. It's a known bug.
Norbert gave me same replay. Post #107802

forum.linuxcnc.org/gmoccapy/34065-gmocca...?limitstart=0#107802

Mike
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