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  • tommylight
  • tommylight's Avatar
27 Mar 2026 13:08
Replied by tommylight on topic Review Request for Arc Volt Sensor Schematic

Review Request for Arc Volt Sensor Schematic

Category: Plasma & Laser

Edited previous post to reflect resistor values, as the drawing is just a wiring example .
  • Todd Zuercher
  • Todd Zuercher's Avatar
27 Mar 2026 13:06 - 27 Mar 2026 13:12
Replied by Todd Zuercher on topic Updating Old GladeVCP Files?

Updating Old GladeVCP Files?

Category: GladeVCP

I'm starting to get pissed off. This stupid Gladevcp just does not seem to want to cooperate. My two sets of radio buttons are just being stupid. There are 2 pairs with each button triggering a hal action MDI widget. Each of the Hal Action MDIs call either a small sub program or a custom M-code. A set for the left side and a right side and both are exhibiting the same behavior. I have the left unclamp radio button as the master in the left group. Pressing the left_clamp button works correctly and runs it's sub program activate the left side clamps in a sequence. I have the unclamp buttons call for a single custom M-code that releases all of the clamps at once. But when I press the unclamp button, it runs the clamp sequence, then unclamps. If I press the unclamp button(s) while the vcp screen already indicates that the radio button is in the unclamped state, then it behaves properly and only issues the unlcamp M-code.

My second problem, I also have a set of physical buttons on the other side of the machine that use Halui MDI commands to call the same sub programs and custom M-codes to clamp and unclamp. Those are working perfectly by themselves. I created some hal pins in the python call back that toggle each of the VCP radio buttons, so the screen can match and indicate the state of the clamps. If I disable eache the button's "Related Action" in glade, that all works perfectly. Pressing the clamp/unclamp buttons change the toggled buttons on the VCP like I'd like them to. But then the VCP buttons don't actually do anything. With the button's Related Actions turned on, it set up a loop, where when one of physical the buttons are pressed, the clamps start cycling on, off, on, off... continually. Well that's no good at all, but not surprising.

Any clues atll how to fix the first problem. So far everything I've tried either has no effect or stops the GladeVCP buttons from working.

I think I could work around the 2nd problem if I could fix the 1st one. I'd have the physical buttons simply trigger the glade buttons instead of calling the halui MDI commands. The other way would be to make the call back file change the active button on the VCP without activating the buttons action, but still let the button action work when pressed on the screen. But I don't know how to do that.
  • alangibson
  • alangibson
27 Mar 2026 13:03 - 27 Mar 2026 13:03
Replied by alangibson on topic Review Request for Arc Volt Sensor Schematic

Review Request for Arc Volt Sensor Schematic

Category: Plasma & Laser

tommylight  Really interesting. Thanks.
  • alangibson
  • alangibson
27 Mar 2026 13:02 - 27 Mar 2026 13:02
Replied by alangibson on topic Review Request for Arc Volt Sensor Schematic

Review Request for Arc Volt Sensor Schematic

Category: Plasma & Laser

I've added the SPI isolation. The whole thing is now fully isolated.

 
  • tommylight
  • tommylight's Avatar
27 Mar 2026 13:01 - 27 Mar 2026 13:06
Replied by tommylight on topic Review Request for Arc Volt Sensor Schematic

Review Request for Arc Volt Sensor Schematic

Category: Plasma & Laser


edit:
The values are placeholders, i usually use 2x470K to 2x1M for the side resistors and adjust the value for the middle one depending on what i can find.
  • alangibson
  • alangibson
27 Mar 2026 13:00
Replied by alangibson on topic Review Request for Arc Volt Sensor Schematic

Review Request for Arc Volt Sensor Schematic

Category: Plasma & Laser

I use the filter for a couple of reasons:
1. environmental noise
2. I don't trust cheap plasma cutters to output clean DC

I see a couple of capacitors and resistors as cheap insurance against potential future problems.

I want to be able to confidently support cheaper options like Lotos LTP5500CNC. That's the one I have. It works fine and is a small fraction the price of a Hypertherm.

I actually looked at supporting HF start machines in the past. I just couldn't justify the cost and effort.
  • JT
  • JT's Avatar
27 Mar 2026 09:58
Replied by JT on topic Flex GUI Keyboard Jogging

Flex GUI Keyboard Jogging

Category: Flex GUI

Anything is possible, I just need to think about the best way to implement that.

Just about finished a massive update on control enable/disable so the dust needs to settle a bit on that.

JT
  • Pierangelo
  • Pierangelo
27 Mar 2026 08:22

4-Axis RP5 with Bigtreetech Octopus Pro- How to make axis indipendent

Category: Driver Boards

Luca
Thank you for your response.
I have eventually managed to make it work.
It looks like the Octopus Pro board has Motor3 and Motor4 running in parallel.
I have used Motor0,1,3 and 5, defined XY;UV axis and it works.
Now I have 4 independent linear axis.
  • Hakan
  • Hakan
27 Mar 2026 08:15

Review Request for Arc Volt Sensor Schematic

Category: Plasma & Laser

I also wonder about the 2 50k resistors.

Good find on the regulated TMR-0511.
I looked at the output of the isolated power supply I use. I wasn't terrible, almost ok but not totally stable.

Why the filter step? HF?
  • Hakan
  • Hakan
27 Mar 2026 07:28
Replied by Hakan on topic Ethercat Setup help needed for beginner

Ethercat Setup help needed for beginner

Category: EtherCAT

Basically what you do is replace the motion part of the sim config with the ethercat motion.
Here is an example I often refer to. You do need the cia402 component as well.
github.com/dbraun1981/hal-cia402/tree/main/example
  • Yannis
  • Yannis
27 Mar 2026 07:07
Replied by Yannis on topic W axis machine config

W axis machine config

Category: General LinuxCNC Questions

The signals looks ok
Also on the WATCH tablet the virtual led for e-stop and machine enable are working fine
  • MiMaMoadlo
  • MiMaMoadlo
27 Mar 2026 06:58

Stepperonline A6 400W Servo RS485 Step/Dir (ohne EtherCAT)

Category: Deutsch

ja, der the stepperonline support hat mich noch auf diesen Artikel hingewiesen:
Why Does the Motor Not Rotate After I Connect My Pulse Controller to the A6 Driver? | Help Center

Mein Fehler war, dass ich den S-On Pin mit GND und nicht mit COM- beim Testen verbunden hatte, jetzt funktioniert es!

 
  • ts
  • ts
27 Mar 2026 06:38
Replied by ts on topic Flex GUI Keyboard Jogging

Flex GUI Keyboard Jogging

Category: Flex GUI

This is works cool
And is there option for toggle between continues and limited (0.01 0.1 1) movements? I mean for example if keyboard jog is active, and i push 1 on keyboard, jog speed switch to 0.01, if i push 2 on the keyboard, then jog speed switch to 0.1 etc
  • ts
  • ts
27 Mar 2026 06:17

Ext hard buttons duplicate Power_PB and Reset

Category: Flex GUI

Additional :
I tryed to add halui to have functionality of power on button and reset with external hard button, but somewhy there is an errors duing start of halui. May be flexgui didnt let halui to start?
  • AntonioT
  • AntonioT
27 Mar 2026 06:12

THC not getting active even when "all seemingly needed" requirements are met

Category: Plasmac

ok, found this to try those 2 seconds maybe:

Two methods of THC activation are available and are selected with the Auto Activation check-button. Both methods begin their calculations when the current velocity of the torch matches the cut feed rate specified for the selected material:

Delay Activation (the default) is selected when Auto Activation is unchecked. This method uses a time delay set with the Delay parameter.

Auto Activation is selected when Auto Activation is checked. This method determines that the arc voltage is stable by using the Sample Counts and Sample Threshold parameters.
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