VMC related HAL questions.

sspeed33317 wrote: Encoders go back to the MESA card. If I were using brushless motors then hall sensors would go to the amps only.

Ok, that sounds like a torque-mode system.

Rather than repeat stuff:
www.gnipsel.com/linuxcnc/tuning/torque.html

But let us know how that works for you, maybe your experience can expand that.

Been working a lot lately and l i finally made it over to the workshop, pulled the computer and all my MESA stuff to bring back home.
Reinstalled LinuxCNC with the latest updates. And now I may be moving workshops again... and then next Wednesday the 10th of June I am heading
over to your side of the pond Andy. Coming over for the 24 Hour LeMans..

I am hoping i can get to work on it when i get back but I may be putting all of my stuff in a storage unit for a little while until I can find
a smaller shop. the rent has been a killer and i was hoping to be able to get a garage built but the $$ has been slow coming.

I am going to set up the controls at home and then bring the whole thing to the machine when its ready.

Having a slight problem.. getting an error when opening the VMC simulator.

I believe i followed your instructions to install the carousel comp.
But it doesn't look like it went to the correct directory


Was trying to attach the error file.. seems i got it to upload..

sspeed33317 wrote: I believe i followed your instructions to install the carousel comp.
But it doesn't look like it went to the correct directory

No, it appears not "toolchange.hal:1: Can't find module 'carousel' in /usr/realtime-3.4-9-rtai-686-pae/modules/linuxcnc"

Can you paste the output of (Or sudo halcompile... if using a development LinuxCNC version)

If it doesn't end with a cp... command then something hasn't quite worked.

I got it !!!...

i did a lot of searching ...

i finally found your post 58057
followed the way it was done there and it worked ....

I was way off on the procedure.

Well I finally had a go at the closed loop spindle control you helped me with.
I didn't really know what I was doing so I'll attach the files if you Andy or someone else have the time to take a look at them?
One thing, I have a +/-10V drive so there i no need for the fwd/rev outputs. I just commented those lines but I might have to edit something else to?

You have

Code:

loadrt orient addf orient.0 servo-thread #loadrt mux2 -- This has already been loaded in the sim_vmc.hal addf mux2.0 servo-thread # chooses which pid output goes to the spindle speed control

You need to un-comment the loadrt mux2, as I don't think you have that loaded elsewhere.

Code:

#for a real spindle run by a VFD loadrt abs addf abs.0.servo-thread net spindle-cmd mux2.0.out abs.0.in net spindle-cmd-abs hm2_5i25.0.7i77.0.1.analogout5 #net spindle-fwd abs.0.is-positive parport.0.pin-NN-out #net spindle-rev abs.0.is-negative parport.0.pin-NN-out

This needs to be To send the bipolar speed command to the analogout.

Like this?

thewho wrote: Like this?

Code:

#for a real spindle run by a VFD loadrt abs addf abs.0.servo-thread net spindle-cmd mux2.0.out hm2_5i25.0.7i77.0.1.analogout5 net spindle-cmd-abs hm2_5i25.0.7i77.0.1.analogout5

No...

Replace the entire section I quoted with the single replacement line.

Oh, when reading your message again it seems quite obvious :blush:

Tried it in the machine but I see no change in behavior. I did not get any errors at startup.
Tried a M3 S100 but It doesn't compensate at all? Am I missing something here?

M33.1 Does not do anything ether.

EDIT: Oh wait, I´m stupid.. Did get an error though

EDIT2: