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  • tommylight
  • tommylight's Avatar
16 Aug 2025 00:32
Replied by tommylight on topic How to set qtdragon to re-face my spoilboard

How to set qtdragon to re-face my spoilboard

Category: Qtvcp

I might not be the "best" to answer this, but since i see you're head first into self destruction, leme help :) :
-QtDragon does not care about your spoil board, nor does FreeCAD
-... i am out ... :)
Back on topic, i can not recall what i used some 15 or more years back for that exact purpose, but i am sure it was free and Open Source, but:
forum.linuxcnc.org/20-g-code/42707-g-code-generators
wiki.linuxcnc.org/cgi-bin/wiki.pl?Simple...NC_G-Code_Generators
And most probably this will do just fine
github.com/LinuxCNC/simple-gcode-generators/tree/master/face
and the bunch here
github.com/LinuxCNC/simple-gcode-generators?tab=readme-ov-file
  • Revinvoss
  • Revinvoss's Avatar
16 Aug 2025 00:16

How to set qtdragon to re-face my spoilboard

Category: Qtvcp

For the life of me, I can not find ANY useful info on how to re-face my spoilboard. Sure, I would have to buy hundreds of dollars to get a program to do what Qtdragon should be able to do with out that. I have FreeCAD but, I also seems to not have the means to do this. Is there any one here that knows how to make a G-code operated machine simply go back and forth at a set high across a set dimension?
As you guys will have questions, I will be glade to answer to get this spoilboard faced. before I burn it to the ground.
  • tommylight
  • tommylight's Avatar
16 Aug 2025 00:01

getting started , latency and breakout board questions

Category: General LinuxCNC Questions

Looks fine so far, move on! :)
There should be no issues with the BOB as long as your servo drives can accept step/dir control signals, or even quadrature or UP/DOWN.
  • Chock
  • Chock
15 Aug 2025 22:59 - 15 Aug 2025 23:06

getting started , latency and breakout board questions

Category: General LinuxCNC Questions

thanks again for the help     this is what i have set up NOW,   exercised latency is as pictured,

Are there any Known problems with a C11G multifunction CNC board?    for AC servos?

thanks
  • Chock
  • Chock
15 Aug 2025 22:26 - 15 Aug 2025 22:37

getting started , latency and breakout board questions

Category: General LinuxCNC Questions

i have disabled all the options in the above picture . the latency test is still early, but it looks much much better

OOPs   i read a snippet from somewhere that said it would be good to start on a single core and the add the cores if i need them?     

i disabled the C1E, but not the C1,   i did not see C1 as De-selectable,   I will try again 

i can change it back correct?

OK C state support is set to C1.

and multi core is RE-enabled

thanks very much for your help PCW.

i am re running latency test again,   i did not take a pick from a few minutes ago,  but i think the servo thread was under 10000, and the base thread was about 26000

 
  • PCW
  • PCW's Avatar
15 Aug 2025 22:14

getting started , latency and breakout board questions

Category: General LinuxCNC Questions

yes, you want multicore processing enabled

You should also disable Cstates > C1
 
  • Chock
  • Chock
15 Aug 2025 22:01 - 15 Aug 2025 22:08

getting started , latency and breakout board questions

Category: General LinuxCNC Questions

After a bit of luck i have managed to access a menu that has the hyper threading setting.   In the pic  i have disabled the top 2 options.    How about the rest of the settings in this menu? 

  DO i need multi core processing??

Are these changes permanent or do I have to resett them every time i power cycle?

also i am double spacing these posts when i type, but when i submit the post ;   they get all squashed together.Is there a way to keep my double spacing so the post is easier to read? 
  • scsmith1451
  • scsmith1451's Avatar
15 Aug 2025 20:47
Replied by scsmith1451 on topic Set program zero using XY positioning laser

Set program zero using XY positioning laser

Category: Advanced Configuration

Thanks rodw,

I've added the following to my .ini file:

[LASER]
laser-offset-x = -3.2017
laser-offset-y = -0.2124

I've tried several ways that I could think of to reference these values in the gvcp-panel.ui, as CALL parameters to the EMC_Action_MDI widget without success.  I've also tried to just reference them in the auto-xy-zero.ngc file called by the EMC_Action_MDI widget without success.

A review of the online documentation has not been helpful either.

What is the correct method to pass them to the ngc file for execution?

Kind regards,
  • Martin.L
  • Martin.L
15 Aug 2025 19:08 - 18 Aug 2025 06:10
Carousel ATC setup on Probe Basic was created by Martin.L

Carousel ATC setup on Probe Basic

Category: QtPyVCP

Hi, after a couple of months I'm back on my Brother TC201 retrofit, Will post pictures soon. As a newbie with probe basic (and LCNC) I did my best to configure it but without luck, I guess I'm missing a big chunk of knowledge somewhere but cant figure out. here is my config, actually the ATC tab look like in the screenshot. Please point me somewhere
  • COFHAL
  • COFHAL
15 Aug 2025 19:06
Replied by COFHAL on topic AX58100

AX58100

Category: EtherCAT

Another thing I noticed is that when looking at the circuit diagram the +24 volt input is not connected to anything, the same on the PCB this pin is not connected either, only -24 volts is connected to the current limiting resistors at the inputs of the optocouplers of the inputs.
  • COFHAL
  • COFHAL
15 Aug 2025 19:00
Replied by COFHAL on topic AX58100

AX58100

Category: EtherCAT

The CAT3000 definitely doesn't work with Linuxcnc with the latest version. If I connect it to TwinCAT, there's no problem. I can go to OP state, the inputs and outputs work, the encoder too, but with LNC, nothing works; it doesn't go to OP state. Something very strange is that many Enable pins are generated, 8 in total for each Enable, as seen in the photo. I don't know if the problem could be the ethercat-conf file.
  • PCW
  • PCW's Avatar
15 Aug 2025 18:24 - 15 Aug 2025 18:27

MESA 7i97 - connection of DC Tach-Motors (2)

Category: General LinuxCNC Questions

You could run a unipolar analog drive (0 to +10V) with direction control by using the
abs component on the output of the position PID loop in LinuxCNC. The abs component
has a sign output that could be used for direction control.
 
  • Hartwig
  • Hartwig
15 Aug 2025 18:16

MESA 7i97 - connection of DC Tach-Motors (2)

Category: General LinuxCNC Questions

Dear members,

my milling machine has four 12 VDC Tacho-motors for the axes  The direction change is done by a switch and by relais. It is not a CNC control, it is a distance-control managed by a Heidenhain TNC113 for each axis seperately only in sequence - not in parallel. So it is easy to change the motor running direction by a switch or by a relais. The motor amplifier accepts as external signals only 0 to 10 VDC and an "Enable".
 

The question is how to handle the MESA output which ranges from -10VDC to  + 10 VDC to have the motors run-direction changed.

The only other option of aan amplifier which I found is from RS Components, which has a direction switch. But it works also only with a signal voltage of 0 to 10 VDC.
 
I there any helpfull idea how to realise the controls without relais?

Thanks a lot and best regards

Hartwig

 
  • Hartwig
  • Hartwig
15 Aug 2025 17:30

MESA 7i97 - connection of DC TachMotor amplifiers - power supplies

Category: General LinuxCNC Questions

Sorry, I have pasted print-screens, are not shown but are creating a lot of senseless Text.

I will repeat my post in a proper format.

Best regards

Hartwig
  • PCW
  • PCW's Avatar
15 Aug 2025 17:29 - 15 Aug 2025 19:39

Mesa 7i96S step and direction signals go high on power loss

Category: Driver Boards

The problem is, if the drives are enabled and powered when the step/dir signals decay 
there is a point where even 10mv of switching noise (at the drive PWM frequency so maybe 20 KHz)
will be interpreted at step signals, especially if there in no hysteresis past the optocoupler in the drive.

For actual servo drives, I would use a 7I96S isolated output to enable the drives.
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