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Hi I'm new to LinuxCNC and I have a 3D touch probe. I'm using gmocapy. The probe is tied to one of my Mesa inputs. What do I have to write in my hal and in files to connect it? And how do I control it from the gui?

Thank you it works

Trying change first line in HAL to this:

loadusr -Wn arduino arduino-connector

I'll post it as soon as I can. 
After posting the files I changed the .ini settings:  OUTPUT_SCALE =value to 1000 and it partially solved the issue.  My Spindle output  range is now 0-10V for forward rotation.  However, this seems not to be an absolute value.  There are various other posts that use completely different values that work for them.  I haven't been able to find the parameters than influence the required value of OUTPUT_SCALE.  It is pure coincidence that I stumbled upon this solution.  It only works for forward rotation but not for reverse rotation. I would however like to rotate the spindle both ways.

[SPINDLE_0]
P = 0.0
I = 0.0
D = 0.0
FF0 = 1.0
FF1 = 0.0
FF2 = 0.0
BIAS = 0.0
DEADBAND = 0.0
MAX_OUTPUT = 2000.0
ENCODER_SCALE = -400.0
 OUTPUT_SCALE = 1000
 OUTPUT_MIN_LIMIT = 10
 OUTPUT_MAX_LIMIT = 2000

Haha, you are in luck that someone bothered to print information on that thing.

I would 

• provided nothing damaged on the machine, not touch its electrics. 
• get it running without integrating the spindle into the control. (safe that machine configuration)
• start working on spindle integration with another machine configuration (that way you can take your time to figure it out and still use the machine to cut something)

Did you do your latency test? Keep in mind: Should you have to replace the PC, a PCI or PCIe parallelport card is a means to provide a parallelport for cheap. No need to hunt down a PC with onboard parallel port.

Chances are that you can drive the VFD via PWM directly. (maybe a digital potentiometer is an easy way to do) A 2nd parallel port can be added if there is not enough IO left for the VFD.

 

It's almost a year and a half later. Has anyone updated the probe-screen-ng to Python3 and LinuxCNC 2.9._ ?

It mentions a filename vartokins.py, I don't have that here so I don't know what that is.

There are probably several things. But let's start with the line
"loadusr -W ./lcec_conf ethercat-conf.xml'"
Remove the ./ and it will find the lcec_conf module at /usr/lib/linuxcnc/modules/lcec_conf.so
The filename ethercat-conf.xml on that line must match the file name where you have the config. You attach ethercat-conf_2025-02-26.xml.  If that's the one you use use the line "loadusr -W lcec_conf ethercat-conf_2025_02_26.xml".
You will get error because slave 0 and 2 do not have hal pins with the mentioned names. You had them as basic cia402 in the earlier xml file. Either go back to that or change the pin name in ethercat-conf.xml the "halPin" value there.
There is no slave 3 in ethercat-conf.xml so you will get errors when trying to use lcec.0.3.out-03 in the hal file.
 

Chris,

With ChatGPT's help I think I have found enough examples to have a go at this. I'll report back with how it goes. Thanks for your guidance.

John

Hello, 
i have a delta VFD-H, i have checked the manual there is no mention of modbus, only Serial Communications rs485 is mentioned, can i still use it with linuxcnc over rs485 ?
 

Thanks for that. I had a little formatting issue with my post that I corrected.

However, since I don't have enough inputs with the parallel port type setup to put the fault line from each driver to its own input, all three will be going to a single input. This will be corrected once I get a Mesa 7C81 if they ever go back into stock.

So, for my current setup I could do this:

net driver-fault <= hal_gpio.GPIO25-in
net driver-fault =>joint.0.amp-fault-in

Which would trigger a x-axis driver fault no matter which driver actually had a fault and stop all motion. Is this correct?

Incidentally, for my own education is this line the same as the above two lines except just on a single line?

net driver-fault => joint.0.amp-fault-in <= hal_gpio.GPIO25-in

Thanks.

Looks like that should be relatively easy to get working
with a parallel port and LinuxCNC + StepConf since
it was designed for a standard parallel port interface.

What issues did you have?

Hakan, This appears exactly as the issue I am having. I can say that I also have linuxcnc-ethercat installed from the repo. Also I would have just posted here if I knew his error was the same, sorry for clogging things up.

Steve Cap

Thank you for all the help so far. I've been running into an issue and feared it may have been caused by my fumbling earlier on and some weird state I may have put the installation into. To resolve this, I started a fresh install from current ISO and so far it has been much smoother given that I have a little more understanding. However, I have still ended up getting stuck at the same place, lol. I have included a screenshot and some config files to assist troubleshooting. 

Thanks, 

Steve Cap 

joint.N.amp-fault-in IN BITShould be driven TRUE if an external fault is detected with the amplifier for this joint.