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  • flexbex
  • flexbex
12 Feb 2025 05:17
Replied by flexbex on topic try to invert the enable on my mesa 7i96s

try to invert the enable on my mesa 7i96s

Category: General LinuxCNC Questions

That could work. But why do you choose a 47 ohm 1W resistor? That sounds so small. As a pull up I normally choose more in the 1k range
  • cakeslob
  • cakeslob
12 Feb 2025 04:54

Remora - ethernet NVEM / EC300 / EC500 cnc board

Category: Computers and Hardware

yeah, did you fix the other 2? the first one is you didnt install the nvmpg component, and the second one is the halfile for that usb pendant isnt present

but yes thats how you connect the x thing probably
  • flexbex
  • flexbex
12 Feb 2025 04:54 - 12 Feb 2025 05:11
add estop input was created by flexbex

add estop input

Category: General LinuxCNC Questions

Hi I want to add estop function to my CNC. So I want to link the estop to input 4 of my mesa 7i96s. The idea of the estop is because I want to link it to the alarm of my stepper drivers. So the circuit would look like this

 


So when the estop is pressed or the alarm of one of the controllers switches. I want Linuxcnc to stop.
I tried this with a default PNCCONF and it works. But when I try it on my original hal file without using pncconf. It doesn't work.  what I did was to copy the line 

# --- ESTOP-EXT ---
net estop-ext     <=  hm2_7i96s.0.inm.00.input-04-not

in my original hal file. But it doesn't have any effect. But in the Halmeter I can see the changes. Do I have to add anything more to add an additional  input?
  • PCW
  • PCW's Avatar
12 Feb 2025 04:46 - 12 Feb 2025 05:11

[SOLVED] Mesa/Hostmot2 - PWM direction pin?

Category: Driver Boards

It appears based on the orient man page that index should not be needed
since orient effectively does a mod(turns) operation on the rising edge of orient enable.
That does not seem to be working, so probably the first thing to investigate.

also

Oddly, orient position error is always 0 (orient.0.poserr).

Shows some logical error somewhere

Need to look and the encoder position and orient.command before and after the
orient enable rising edge.

Note that using index at the wrong time here could cause the problem you see:
That is, clearing the position with index after orient has latched its offset would
cause similar issues to the ones you are having so I would disable index operations to do the
"check encoder position and orient.command before and after the orient enable rising edge"
test
 
  • spumco
  • spumco
12 Feb 2025 04:37
Replied by spumco on topic [SOLVED] Mesa/Hostmot2 - PWM direction pin?

[SOLVED] Mesa/Hostmot2 - PWM direction pin?

Category: Driver Boards

It's not overshooting; PID tuning isn't the issue, at least right now.

On my mill, I have to set index-enable once before the first orient.  From then on orient never rotates the spindle more than 1/2 turn one direction or the other for the remainder of the LCNC session without having to reset the index.

The problems on the lathe are
  • I have to set index-enable every time I orient, otherwise it unwinds all the way until spindle revs = 0, and
  • It only goes one direction: whichever direction takes spindle revs back to 0
My understanding of orient, based on my mill's behavior and reading the MAN file (and forum posts), is that something should be doing some math so that orient knows which way to turn, and that it only needs to move until spindle revs equals a whole number (ie. at the encoder z-position) plus however many degrees are programmed in the R-value.

Side note - I also found that ORIENT_OFFSET in the INI file doesn't take in to account multiple spindles.  There's no way to have separate offsets for my main and sub... not important right now but may become annoying down the road.
  • timo
  • timo
12 Feb 2025 04:37
Replied by timo on topic Camera tab in Axis

Camera tab in Axis

Category: AXIS

I first found a lot of advise to use mplayer. Could not make it do anything. (LinuxCNC 2.9.4 Debian 12 Bookworm PREEMPT-RT ISO) download from 9th Feb 2025

The qtvcp lines in the *.ini made a picture with several cameras I tried.
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