G33.1 causing gcode to hang

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09 Apr 2026 18:14 #345366 by jblanscett
G33.1 causing gcode to hang was created by jblanscett
Hi all,

We got our lathe to run and have been moving on to some of the finer details.We are on Linuxcnc version 2.9.2. We are using the AXIS display and have a Mesa 7i95 board. The problem we have been having is when trying to get our machine to do rigid tapping we will get to the g-code that does the rigid tapping and it will hang. From what I've understood, we need to have the at speed signal be true for rigid tapping? We have also manually confirmed that the spindle index enable will go low when it reaches one specific point on the spindle. I was hoping that we could get some help with anything that might be causing this issue. I have attached our hal, ini, and the gcode we are trying to run on our lathe.

-jblanscett
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09 Apr 2026 18:28 #345368 by spumco
Replied by spumco on topic G33.1 causing gcode to hang
Just a quick glance... all your spindle-index-enable signal lines appear to be commented out in the HAL file.

Maybe a double-check and possibly uncomment those lines?

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10 Apr 2026 10:06 #345388 by jblanscett
Replied by jblanscett on topic G33.1 causing gcode to hang
Sorry, let me clean that up a bit.
 

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10 Apr 2026 10:40 - 10 Apr 2026 10:41 #345389 by jblanscett
Replied by jblanscett on topic G33.1 causing gcode to hang
Okay, I cleaned it up and made sure a signal spindle-index-enable was connected. We still get to the G33.1 line and it sits there and doesnt move in the z axis.
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Last edit: 10 Apr 2026 10:41 by jblanscett.

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10 Apr 2026 11:40 #345391 by spumco
Replied by spumco on topic G33.1 causing gcode to hang
pid.s.index-enable is still commented out in the last file you attached.

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10 Apr 2026 11:50 #345392 by jblanscett
Replied by jblanscett on topic G33.1 causing gcode to hang
ah thanks I uncommented that out. No change to the behavior though.
 

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10 Apr 2026 12:50 #345397 by jblanscett
Replied by jblanscett on topic G33.1 causing gcode to hang
I figured out the problem. The spindle at speed wasn't going true for the clockwise direction of the spindle causing the code to hang.
The following user(s) said Thank You: tommylight, spumco

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