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  • andypugh
  • andypugh's Avatar
22 Oct 2025 14:20
Replied by andypugh on topic Button on Linuxcnc interface that switches an output on Mesa 7i76e on and off

Button on Linuxcnc interface that switches an output on Mesa 7i76e on and off

Category: GladeVCP

I think 6.1.0-30-rt should probably be OK. (though I think that the packages were built on 6.1.0.10-rt )
  • Lcvette
  • Lcvette's Avatar
22 Oct 2025 14:13
Replied by Lcvette on topic Probe Basic backplot error when loading file

Probe Basic backplot error when loading file

Category: QtPyVCP

I think this was resolved in the develop branch, multiple offsets but was something we found also, you can upgrade to the develop version which should resolve the issue
  • DerKlotz
  • DerKlotz
22 Oct 2025 13:58
Replied by DerKlotz on topic Button on Linuxcnc interface that switches an output on Mesa 7i76e on and off

Button on Linuxcnc interface that switches an output on Mesa 7i76e on and off

Category: GladeVCP

Hello,
you answered one of my posts. Can you help me installing the right kernel. I don´t know how to do it.

"Try repeating after typing
sudo apt purge raspi-firmware
If you still gets errors, share the output of uname -r as it appears it is trying to install an incorrect kernel version. "

I got this message 6.1.0-30-rt-amd64
  • andypugh
  • andypugh's Avatar
22 Oct 2025 13:32
Replied by andypugh on topic linuxcnc.command().mdi() vs .program_open()

linuxcnc.command().mdi() vs .program_open()

Category: General LinuxCNC Questions

Why not just write a simple G-code program to probe your 5 points and log the data to file?
(probeopen proberesults.txt)
G53 G0 Z 100
G53 G0 X0 Y0
G38.2 Z0
G53 G0 Z100
G53 G0 X0 Y1000
G38.2 Z0
G53 G0 Z100
G53 G0 X1000 Y1000
G38.2 Z0
G53 G0 Z100
G53 G0 X1000 Y0
G38.2 Z0
G53 G0 Z100
G53 G0 X500 Y500
G38.2 Z0
G53 G0 Z100
(probeclose)
M2
  • newbynobi
  • newbynobi's Avatar
22 Oct 2025 13:26
Replied by newbynobi on topic Additional hardware-button for coolant

Additional hardware-button for coolant

Category: Gmoccapy

You may also just use the halui pin,

linuxcnc.org/docs/html/gui/halui.html#_flood

 
  • andypugh
  • andypugh's Avatar
22 Oct 2025 13:20 - 22 Oct 2025 13:24
Replied by andypugh on topic Additional hardware-button for coolant

Additional hardware-button for coolant

Category: Gmoccapy

On my lathe I fitted a 3-position switch, labelled with "on - auto - off". This allows me to override the G-code if required, to either on or off.

The HAL to do this looks like this:
net coolant-off hm2_7i84.008a.input-25
net coolant-on hm2_7i84.008a.input-26

loadrt mux_generic config="bb4"
addf mux-gen.00 servo-thread
net coolant-off mux-gen.00.sel-bit-00
net coolant-on mux-gen.00.sel-bit-01
net coolant-flood mux-gen.00.out-bit => hm2_7i84.008a.output-08
net coolant-auto iocontrol.0.coolant-flood mux-gen.00.in-bit-00
setp mux-gen.00.in-bit-01 0
setp mux-gen.00.in-bit-02 1
setp mux-gen.00.in-bit-03 0

Possibly not the simplest way, I suppose that it could have been done with simple AND and NOT components

coolant-out = (coolant _flood OR coolant_on) AND (NOT coolant_off)

Or even LUT5.
Truth-table for LUT5
coolant_flood | 0 1 0 1 0 1 0 1
coolant_on    | 0 0 1 1 0 0 1 1
coolant_off   | 0 0 0 0 1 1 1 1

coolant_out   | 0 1 1 1 0 0 0 0

LUT5 Mask = 14 (0x0E)
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