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Be careful as many KBIC speed controllers have a analog speed control
input that connect directly to line power, so requires an isolated analog
voltage source.

You can use single ended encoders with the 7I96, to do so,
you must set jumpers W2,W3,W4 into the left had position.

This is described in the 7I96 manual on pages 2 and 12
 

I did finally get this problem to show in a sim, with your test program.
It didn't show with 3d_chips.ngc though.

I actually can see the spindle (by the spindle speed display) stops then starts again.

If I put an m5 in the on_abort.ngc file I could get it to always kill the spindle.
That is masking the problem, but would help in the mean time.

I am testing master, which I think you are using too.

I use this one wago 852-111, I used on ethercat, as daisy chain device as ethercat topology concept (I mean on input one output), I do not test a star or other network topology, I use this to split the same PC NIC with, mesa card and internet connection, it is working fine all together, but I do not test like intensive mode for several hours.  

Did you try disabling the preview ?
There are many things you can toggle in AXIS GUI, View menu, start with "alpha blend program".

I tried it with a VM and sim config, as well as with a real CNC (PrintNC) on a Pi5, same behaviour.

I installed a recent dev version (github.com/LinuxCNC/linuxcnc/actions/runs/32728344015), and the linuxcncrsh coming with it works as expected. Since this dev version appeared to be a 2.10 pre-release, if the release of 2.10 is in the near future, I can live with using this dev version, don't see the need for opening an issue for 2.9.

Hi,

I currently am trying to control my spindle's speed using my BoB's analog output pin. It provides a max of 0-10 V out. I want to use this signal to control my KBIC speed controller, but it requires an analog voltage that is between 0 and 7 V. I'm not sure as to how to go about doing this. I've looked at the documentation but am still confused. I just want to test to see if it is actually working, so if someone could just slap together a HAL file that is able to do this so that I can test it, I would be really appreciative. I want my spindle to go at a maximum speed of 1400 RPM, and on my BoB the analog out is pin 1.

Thanks,
Logan

Is LinuxCNC running inside a VM or bare metal?

Question about sharing index-enable between s_orient and spindle for M19 / G33.1

Hello,

I am continuing my work on spindle orientation with a servo motor and would appreciate some advice about index-enable.

My setup is:

LinuxCNC 2.9.4
Servo spindle motor with encoder
Encoder A/B/Z connected to LinuxCNC
encoder.0.x4-mode TRUE
encoder.0.position-scale 4000
encoder.0.counter-mode 0
BASE_PERIOD = 30000
SERVO_PERIOD = 1000000

I have been working on spindle orientation (M19) and I have found that s_orient is very effective.

With the s_orient version of my HAL, the spindle can be run at relatively high speed (up to about 3000 rpm), stopped at different positions, and then correctly oriented with M19. The previous version using the standard orient component could lose its angular zero reference after running the spindle at high speed.

So I would really like to keep s_orient.

The problem

With the previous HAL using the standard orient component, I had:

net spindle-index-enable encoder.0.index-enable <=> spindle.0.index-enable

This allowed rigid tapping with:

G33.1 Z-5 K1

and M19 also worked reasonably well.

With the new s_orient version, I have:

net orient-index-enable encoder.0.index-enable <=> orient.0.index-enable

This gives a much better and more stable M19, but G33.1 no longer starts correctly.

During a G33.1 test I observed:

spindle.0.index-enable = TRUE
orient.0.index-enable = FALSE
encoder.0.index-enable = FALSE

So the request from spindle.0.index-enable does not reach the encoder.

For comparison, with the old HAL, the direct connection

net spindle-index-enable encoder.0.index-enable <=> spindle.0.index-enable

made rigid tapping work.

Current s_orient connection

The relevant part of the current HAL is:

net spindle-position encoder.0.position
net spindle-position => spindle.0.revs
net spindle-position => orient.0.position
net spindle-position => orient-pid.feedback

net spindle-velocity-feedback-rps encoder.1.velocity => spindle.0.speed-in

net orient-index-enable encoder.0.index-enable <=> orient.0.index-enable

net spindle-phase-a encoder.0.phase-A
net spindle-phase-b encoder.0.phase-B
net spindle-index encoder.0.phase-Z

And:

loadrt s_orient names=orient.0
loadrt pid names=orient-pid
loadrt mux2 names=spindle-mux

addf orient.0 servo-thread
addf orient-pid.do-pid-calcs servo-thread
addf spindle-mux servo-thread

net orient-enable spindle.0.orient => orient.0.enable
net orient-enable => orient-pid.enable
net orient-angle spindle.0.orient-angle => orient.0.angle
net orient-mode spindle.0.orient-mode => orient.0.mode
net orient-command orient.0.command => orient-pid.command

net spindle-oriented orient.0.is-oriented => spindle.0.is-oriented

The PID settings currently are:

setp orient-pid.Pgain 75
setp orient-pid.Igain 0
setp orient-pid.Dgain 0
setp orient-pid.FF0 0
setp orient-pid.FF1 0
setp orient-pid.maxoutput 50
setp orient-pid.deadband 0
setp orient.0.tolerance 2.0
My question

What is the correct way to share the bidirectional index-enable function between:

spindle.0.index-enable
orient.0.index-enable
encoder.0.index-enable

so that both of these work correctly?

M19

and

G33.1

I understand that index-enable is a bidirectional HAL pin, so I suspect that simply OR-ing the signals is not the correct solution.

I also tried checking for tristate-bit, but it is not available/loaded in my LinuxCNC installation, and trying:

halcmd loadrt tristate-bit

failed with:

waitpid failed /usr/bin/rtapi_app tristate-bit
rtapi_app exited without becoming ready
insmod for tristate-bit failed

I would like to keep the s_orient solution because M19 is now very effective and stable, especially after running the spindle at high speed.

I am only looking for the correct way to restore G33.1 / rigid tapping without degrading the s_orient behaviour.

Any advice would be greatly appreciated.

Thank you!

There has been a fair bit of work going on there.
Could you raise an issue on GitHub?
github.com/LinuxCNC/linuxcnc/issues

If not then I can open one and link here but it would be better to have you in the loop.

Ich steuere meine Drehbank z. Z. mit Mach3 und 2 Printerports. Das funktioniert eigentlich ganz gut. Ich will die Maschine
aber auf eine modernere Steuerung umbauen und auch die komplette Elektrik modernisieren. Ich hatte noch die Mesa 
7I96 und finde auch LinuxCNC ganz gut, deshalb diese Kombination. Weil ich natürlich nicht meine funktionierende 
Maschine auseinanderbauen will und dann ev. feststelle das ich das ganze nicht hinbekomme habe ich ich so eine "Behelfs-
maschine" gebaut, um alles auszuprobieren. wenn alles funktioniert würde ich die Steuerung dann an die Drehmaschine
anbauen.
   

Hallo Holzwurm, eine Frage aus reiner Neugier...
Was meinst du mit "Simulationsdrehbank"?
Baust du das virtuell?

disk.yandex.ru/d/wWys1FiCtXp55w hre is vivado project and so on

Hello everyone,

Check my stl assembler tool at  emresensoy.github.io/stl-assembly/  (coded with claude)

BTW: In the meantime, I’d also carried on working with the board and had a bare-metal LwIP bridge up and running, via the built-in network / bootable via.
but need more testing