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Good morning tommylight, Thank you for your suggestion. I appreciate it.

Best regards,

...behai.

Its not clear it's just one axis with the error.

Random uncommanded moves suggest a hardware issue to me,
either in the drives (encoder feedback error?) or the step/dir
interface (cross talk? EMI? marginal levels? bad connection?)

Yes, all this will work on a parallel port.

something like this:

loadrt siggen
addf siggen.0.update servo-thread
setp siggen.0.frequency .1     # 10 second period)
loadrt oneshot
addf oneshot.0 servo-thread
setp oneshot.0.width 2           # 2 second on time
loadrt not
addf not.0 servo-thread
net cool-trigger siggen.0.clock oneshot.0.in
net coolant-out oneshot.0.out [some_parallel_port_pin]
net coolant-on not.0.in
net gate-coolant not.0.out oneshot.0.reset siggen.0.reset  # when coolant is off, reset both siggen and oneshot

 

Thank you all, it's motoring up and down et al now.

The next trick will be to cut things into my DRO but I'm worried about over loading the sensors if I
just wire it in parallel - the impedances are very low. Do I need to buffer things? Like a bunch of non-inverting gates?

Also I'm looking at an MPG wheel I have with A/B quad outputs.
Since I'm only using 3 axis and I have 6 encoder channels should I be able to wire it into one rather than use the input pins
and get numbers. I tried and got nothing on the hal scope but I don't have anything in the mesact setup
for it yet.

I'm trying to read the manual but at 1300+ pages it's a bit intimidating.

LightBurn(Commercial Laser Software) has functionality to generate LinuxCNC gode. It also has an interface that can home, frame, jog, frame, load programs, run programs etc. This UI works very well for laser cutting and it can communicate using serial over TCP.Recently, LightBurn added a "custom g-code device" that allows you to configure much of the gcode. With some help from the LightBurn forum I have a custom gcode device that can communicate with linuxcncrsh.

I have written a small C++ program that acts as a TCP server to LightBurn and as a client to linuxcncrsh. I have the basics working where I pass the majority of gcode commands through using the "set MDI <gcode command>" and special case a few commands *M114" to run linuxcncrsh get commands to fill in responses sent back to LightBurn.

Working with linuxcncrsh I'm seeing a few problems. github.com/LinuxCNC/linuxcnc/issues/3180
This isn't a deal breaker for what I'm trying to do, but going through some of the unit tests, I noticed tests/toolchanger/test-ui.py uses python as the ui. I'm wondering if python might be a better option???

Is the python interface more complete/better supported than linuxcncrsh?
I'm assuming opening the sockets and translating some strings wouldn't be a problem?
linuxcncrsh documentation indicates it can run in conjunction with another UI. (not sure if this is true in practice?)
Can a python interface run at the same time as another(GMOCCAPY) ui?

I'm trying to decide whether to continue on with linuxcncrsh or start over with python.

I have read the thread and seen the post forum.linuxcnc.org/49-basic-configuratio...sher?start=10#230922 


Can it be adapted to the parallel port? 

I thank you very much for the help but I'm such a newbie that everything sounds like Chinese to me T_T

Oh, I'm sorry, I deleted the video while cleaning up my cloud and also didn't see your post.
I'll make another video as soon as I can and share it.

Bump. Might have been missed, although i do not know how many use the Probe Basic for 5 axis machines.

Must be the third time i am looking at this and can not figure out what is going on, and the picture is not helping.
Can you do some more details, like where the mill is cutting and what direction it is traveling, and just to be sure, that there is no undercut as it looks in the picture.
Or am i looking at it from the wrong perspective?

What do Debian 12, Ubuntu 24 and Linux Mint Debian Edition 6 have in common? ... besides being all Debian, they can all have LinuxCNC installed with a single line after an update:
sudo apt install linuxcnc-uspace
So, not a single distro, but a single distro!
There is also Gento Linux that NTULINUX maintains and supports, and has also RTAI kernels for it and Debian.
Now, has anyone tried to compile LinuxCNC on CL? Maybe that already works.
I compile on every new version of normal Mint and use the created debs to quickly install on many PC's and laptops i use and test, so that also works.
-
No idea where i was headed with this, had a pizza and 2 coffees and had one of the laptops with me so i was browsing the forum and doing maintenance ... been doing a lot of installs lately as i got 5 laptops (4 used and 1 new), not counting the existing ones... send help !

Got another Lenovo X240 and X1 Carbon Yoga laptop/tablet, will update when i get to testing them on a machine as they are installed and ready.

Another possibility is to use the siggen to set the rate (0.1 Hz for example)
and drive the oneshot component with the siggen clock pin, then set the on time
with the onseshot width pin.

The oneshot component has a reset input that could be used for enabling
the output with the coolant-on signal

Nothing to do.

After:
> cmake -DPICO_SDK_FETCH_FROM_GIT=on -DCMAKE_BUILD_TYPE=Release ./Remora-RP2040-W5500-main
> make
OR
> cmake -DPICO_SDK_FETCH_FROM_GIT=on -DCMAKE_BUILD_TYPE=Debug ./Remora-RP2040-W5500-main
> make

It always exits with "fatal error".

Found it:
forum.linuxcnc.org/49-basic-configuratio...timed-output-flasher

I would like to try something like 2 seconds on and 10 seconds off