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  • Z3rni3
  • Z3rni3
12 May 2025 09:41
Replied by Z3rni3 on topic hal functions

hal functions

Category: General LinuxCNC Questions

Yes, I’ve had a look at the link.
I’m sorry I didn’t explain my problem clearly before.

My main issue is figuring out how to correctly connect the components to, for example, make a motor turn.
I’d like to understand which signals and pins are needed and what their actual roles are.
Take the position signal, for example — in my setup, I’m using encoders, so they should be providing that signal.
What I’m looking for is a resource that explains where these signals come into play and what their specific purpose is in the system.
  • aeth
  • aeth
12 May 2025 09:40

Off-the-shelf CNC control box with LinuxCNC?

Category: Milling Machines

Thank you for your answers. After consideration, I'm currently considering buying an industrial PC with resistive touch screen from a really good Chinese company. They even have a cute version with buttons for feed hold/start/stop/e-stop and even feed/speed knobs attached to the panel. They said people have build LinuxCNC systems with their hardware, as well as with Ethercat.
  • RotarySMP
  • RotarySMP's Avatar
12 May 2025 09:30
Replied by RotarySMP on topic Bridgeport VMC760 retrofit

Bridgeport VMC760 retrofit

Category: Milling Machines

The 7i97T has one SS configured on a connector, but with two S devices (7i73 and 7i84) you will probably need to flash a firmware with an additional SS port on the DIL connector.
  • rodw
  • rodw's Avatar
12 May 2025 09:25
Replied by rodw on topic Moving from Axis to QtDragon?

Moving from Axis to QtDragon?

Category: Qtvcp

Linuxcnc will open anything. you can even teach it to not complain about .NC files by editing your .INI file
  • RotarySMP
  • RotarySMP's Avatar
12 May 2025 09:24
Replied by RotarySMP on topic Change Tool Offsets after editing the Tool Table

Change Tool Offsets after editing the Tool Table

Category: Gmoccapy

I vote for that to be in Master as well.
  • Murphy
  • Murphy
12 May 2025 09:11 - 12 May 2025 15:10

Remora - ethernet NVEM / EC300 / EC500 cnc board

Category: Computers and Hardware

When I hook a multimeter up to the vfd 10v in, the voltage physically drops near to Zero if a lot of speed adjustments are done. So I can see now what is happening but iv no idea why the voltage drops so much. It must be something to do with how remora outputs the signal ? 

I spent the whole day going through different code with chatgpt and still nothing, it's still dipping. Should I ask this in a general new topic in the forum or is this specific to remora do you think 
  • Aciera
  • Aciera's Avatar
12 May 2025 08:55
Replied by Aciera on topic hal functions

hal functions

Category: General LinuxCNC Questions

That's already the right direction, but I'm more interested in the commands like:
"net joint.0-pos-cmd <= joint.0.motor-pos-cmd"
These are the commands I would like to understand!


Have you actually looked at the linked document?
You need to understand the difference between a 'signal-neme' and a 'pin-name' See section 1.4.
  • zz912
  • zz912's Avatar
12 May 2025 08:24

Change Tool Offsets after editing the Tool Table

Category: Gmoccapy

I have a question for Norbert.
Do you think it would be a good idea to merge this into the Master branch (2.10)?

I would like this functionality.
  • zz912
  • zz912's Avatar
12 May 2025 08:21
Replied by zz912 on topic Leaving from TOOL page

Leaving from TOOL page

Category: Gmoccapy

Thanks for the answer.
I will respect that. It's just a matter of opinion.
I mostly work as an LCNC integrator, or teach someone. So I often need to switch between several tools and always have to go back.

Sometimes after using those three buttons I get stuck on the TOOL_PAGE page. Now I know that this is a bug. That's also why I opened this thread.
  • Z3rni3
  • Z3rni3
12 May 2025 08:13 - 12 May 2025 08:18
Replied by Z3rni3 on topic hal functions

hal functions

Category: General LinuxCNC Questions

Thank you for your reply!
That's already the right direction, but I'm more interested in the commands like:
"net joint.0-pos-cmd <= joint.0.motor-pos-cmd"
These are the commands I would like to understand!

Next, I would like to understand which pins I can connect to which.
I often get a message like:
"you cannot connect this pin since PinX has already been connected to PinY"
  • Aciera
  • Aciera's Avatar
12 May 2025 07:50
  • theoneandonlyoreo
  • theoneandonlyoreo
12 May 2025 07:05
keyboard shortcuts was created by theoneandonlyoreo

keyboard shortcuts

Category: General LinuxCNC Questions

I need to set the jog increment to a specific value and bind it to a key, let's say 'e'.  I'm using the Axis GUI so the key binding is done like this in .axisrc, which works:

root_window.bind( "<e>", set_jog_inc_precise )

The contents of the function set_jog_inc_precise is the issue.  I've tried the following

vars.jog.increment.set( "0.001" )

linuxcnc.command().jog( linuxcnc.JOG_INCREMENT, True, 0, 10, 0.001 )

j = root_window.nametowidget( ".pane.top.jogspeed.jogincrement")
j.set( "0.001" )

root_window.tk.eval( "set jogincrement 0.001" )
commands.set_jog_increments()


Only the second (linuxcnc.command()...) had an effect.  It actually jogged the axis, when I was watching the DRO.  So when I press "e" it would jog X 0.001 in the positive direction but when I used the arrow, it jogged X based on the drop-down menu in the Manual Control tab.

The backstory is that I have a pendant that isn't supported and have managed to map it from /dev/hidraw<n> to a virtual keyboard.  Most of the buttons work but the relative adjustment of the jog increment (i, I) is not the best because the dial on the pendant is labeled and it's easy to get out of sync. 

I've spent a few hours trying to get this working, reviewed the documentation for the python linuxcnc module, and even asked a few chatbots.  What am I doing wrong?
  • Onkelmat
  • Onkelmat's Avatar
12 May 2025 06:38 - 12 May 2025 06:38

analog Servo spins on its own when connected to 7i77

Category: General LinuxCNC Questions

UPDATE:
After i stopped the servo from spinning on it´s own I went on to setup the limits and the X-Axis ran away like carzy, you´d give 0,05V on to the servo drive and it would react with max speed. I was confused since everything worked fine with 0,02V.
From the other axis i knew it should behave diffrent and should have a slow smooth motion with 0,5V

I´ve swapped the drives with each other, same
I´ve swapped the driver with a new one, same
I´ve checked the wiring, everything on the correct terminal.
I´ve checked the Tacho signal: 0V - THATS IT. The servodrive trys to keep up with the command, but since the Servo isn´t moving it gives even more power until it goes into fault or the axis crashes.

So i was sure the servo is cooked. I was already checking the sister machine for a spare Servo, already loosening the screws and was kinda like:
"oh let´s first remove the broken one".

As i pulled the cables i noticed the cable to the Tacho was ripped out INSIDE the screw thingy where the cable enters the housing. I repaired the wiring and voilá, servo works as expected.

So long story short, the previous owner already had the ripped wire and tried to fix it with tuning the drive, just like i did. The real problem was the severed cable to the tacho.
  • spincycle
  • spincycle
12 May 2025 06:15
Replied by spincycle on topic Bridgeport VMC760 retrofit

Bridgeport VMC760 retrofit

Category: Milling Machines

I've just heard back from the team at Leadshine.

It looks like the EL7 drives have a 0.0625ms delay on the encoder outputs.

Know people have had an issue with the 5ms delay on the DMM drives. Anyone think this might be an issue?

I've just enquired regarding any delay from analog velocity signal to drive reaction, which I assume would effect tuning as well.

Thanks,

J
  • Z3rni3
  • Z3rni3
12 May 2025 06:01 - 13 May 2025 10:45
hal functions was created by Z3rni3

hal functions

Category: General LinuxCNC Questions

Hey,
I'm currently working on configuring different setups using various Mesa boards (7i96S and 7i95T).
For creating the configurations, I’ve been using either the pncconf Wizard or Mesact. Unfortunately, neither tool seems to produce fully working configurations for my particular setup.That’s why I’m now trying to better understand which HAL functions are actually necessary.
Specifically, I’d like to learn what the different pins mean and how they should be connected in a way that makes sense.Could you point me toward some resources or documentation that would help me learn these basics?

Thanks a lot for your time!
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