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  • beauxnez
  • beauxnez
01 Feb 2025 10:34

ESP32/S2/S3 LinuxCNC Controller (6 axis hardware step gen), USB plug-and-play

Category: Computers and Hardware

ok,
 I just found on the subject the config page on the github github.com/SybexX/ESP32_LinuxCNC_MotionC...in/SerialCommands.md,
 I don't understand where you have to type the commands to configure the card?
  • timo
  • timo
01 Feb 2025 09:59 - 03 Feb 2025 11:32

Stuck with spindle interface 7i76 card and weird BLDC driver

Category: General LinuxCNC Questions

Hello,

I tried to figure that out, but not really successful, so I spam the forum with the questions. (I have the feeling I should have found the information somewhere; maybe someone can point me in the right direction) 
I have a 6i25 card with a 7i76 card connected to my PC. Some stepper motors are running and can be moved with keyboard, a basic configuration is running.

Now I got stuck, trying to hook up the old BLDC driver (labeled TONMAN Brushless DC driver) or the machine (which I have no documentation for) seems not to run with an analog input. 
I tried to connect the Spindle interface somehow, but it does not want to run.

There is a pair of pins labeled +- (PWM / ANNA), but I think it is not really for analog input signal.
Hooking up a potentiometer (allowing to create a voltage between 0 and 5V) does nothing to a certain voltage. At approx. 2.6V it switches from "off" to "full speed".
I tried one of those PWM generators   which works fine. It allows to control the speed of the motor, no issue. I can adjust the motor speed by setting the duty cycle to anything between 10% and 100% and it seems to be what I need. 

Now the questions: Is it correct that in my situation the spindle interface of the 7i76 is just the wrong choice for my BLDC amplifier?
                                How do I make a PWM control for my spindle with the 7i76 (6i25)?
                               
Greetings Timo



 
  • rbobey1989
  • rbobey1989's Avatar
01 Feb 2025 09:21
Limit3 and busy hands buttons was created by rbobey1989

Limit3 and busy hands buttons

Category: General LinuxCNC Questions

Hello everyone, I have a situation and maybe you can help me with some ideas:

I am using limit3 to control an extrajoint, on the machine control panel I have two buttons which work as busy hands buttons, that is, for any movement of the machine they must be pressed and when they are released the machine must stop and when they are pressed again the movement must resume.

Using the motion controller "motion" I solved this with feed-inhibit, but now using limit3 I don't have this option.

Doing some tests I have enabled the limit3.enable pin with the action of the buttons but limit3.out is zero when enable is false and that is not what I need, I only need it to brake.

Another option I have tried is to use a mux2 so that when the buttons are pressed a speed change to zero is made on the limit3.maxv pin, this is the closest I have been to achieving this behavior, I am not sure if this is a good option.

I appreciate all the ideas, greetings and thanks in advance.
  • azim4411
  • azim4411
01 Feb 2025 09:09
Replied by azim4411 on topic Elumatec SBZ 130/01 retrofit

Elumatec SBZ 130/01 retrofit

Category: CNC Machines

Hi tommylight,

I'm an intern working for a manufacturing company in Dubai. i have been tasked to retrofit the sbz 130 which the company bought from a scrapyard few months ago. Basically I need the schematics of the sbz 130 but I can't find it anywhere online and all attempts to communicate with Elumatec directly had no results. My mentor said I could also try getting the assembly drawing to know the mechanisms but I'm hitting a dead end everywhere online. Is there any way you can help?

Thanks,
azim
  • Hakan
  • Hakan
01 Feb 2025 08:30
Replied by Hakan on topic AX58100

AX58100

Category: EtherCAT

They should definitely be called joint.0 if they don't there might be bigger problems. The "0" of course refers to the number of the joint that gives the following error.
You find the pin names here
linuxcnc.org/docs/html/man/man9/motion.9.html#JOINT%20PINS
motor-pos-cmd
motor-pos-fb
f-error
are the interesting ones.

There are tutorials on halscope out there. It's a good tool to know how to handle. Basically select the three pins in the fields down below, adjust scaling and offset (can be done later as well). Set to record every millisecond, as long as possible. Manual trigger, and trigger when you get get the following error. It keeps a buffer of recorded data so you won't miss it even if you trigger slightly afterwards. Then adjust the curves with the same scaling for motor-pos-cmd and motor-pos-fb so they can be compared, and put up f-error as well, with a proper scaling so one can see it develop.
  • bananun
  • bananun
01 Feb 2025 08:24 - 01 Feb 2025 08:28

Ethercat installation from repositories - how to step by step

Category: EtherCAT

Sorry, my bad! I should have waited until I had access to the machine so I could post more info about the issue. This is what goes wrong for me with the latest RPi5 image. I've attached the full "log" as well. Is there any other data I can attach to assist? Thank you for your help in advance, I greatly appreciate it!

dpkg: dependency problems prevent configuration of ethercat-master:
 ethercat-master depends on ethercat-dkms; however:
  Package ethercat-dkms is not configured yet.

dpkg: error processing package ethercat-master (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of linuxcnc-ethercat:
 linuxcnc-ethercat depends on etherlabmaster | ethercat-master; however:
  Package etherlabmaster is not installed.
  Package ethercat-master is not configured yet.

dpkg: error processing package linuxcnc-ethercat (--configure):
 dependency problems - leaving unconfigured
Processing triggers for desktop-file-utils (0.26-1) ...
Processing triggers for libc-bin (2.36-9+deb12u9) ...
Processing triggers for man-db (2.11.2-2) ...
Processing triggers for mailcap (3.70+nmu1) ...
Errors were encountered while processing:
 ethercat-dkms
 ethercat-master
 linuxcnc-ethercat
E: Sub-process /usr/bin/dpkg returned an error code (1)
  • cmorley
  • cmorley
01 Feb 2025 08:09
Replied by cmorley on topic qtdragon additonal buttons

qtdragon additonal buttons

Category: Qtvcp

Ok try this both files must be in the folder I described before.
pan/rotate button works and G5x button now will select the DRO to reflect the current user offsets.

As for the REF button - is it that the drop down menu is too small ? It can be enlarged.
Or the Ref button could be changed to just call the calculator for setting the axis (no drop down menu)

(for future reference, this mod is for 2.9 qtdragon_hd)
  • bananun
  • bananun
01 Feb 2025 08:00 - 01 Feb 2025 08:42
Replied by bananun on topic RPi5 Test images

RPi5 Test images

Category: Installing LinuxCNC

Sorry for the lack of info from my side, but I get the same issue with balena etcher fyi, not that it matters apparently since it's not the latest image any more

 
  • Aciera
  • Aciera's Avatar
01 Feb 2025 07:45
Replied by Aciera on topic caxis.comp - How to freewheel axis/spindle?

caxis.comp - How to freewheel axis/spindle?

Category: HAL

As you don't want to unhome during gcode execution you might want to try a python component and use
self.command.unhome(joint)

That is what the guis use, which seems to work just fine.
  • Boogie
  • Boogie
01 Feb 2025 07:45
Replied by Boogie on topic The blacksmith's plasma table

The blacksmith's plasma table

Category: Plasma & Laser

@polskleforgeron - czesc, jak sie mozna z Toba skontaktowac? Chcialbym pogadac o tym stahlwerku - mam ta plazme od dluzszego czasu w pudle i w koncu musze to zaczac uzywac, a utknalem na etapie podlaczenia tego do linuxcnc.

Sorry guys,
just need to get in touch with polskleforgeron.
  • rodw
  • rodw's Avatar
01 Feb 2025 07:37

Custom PC build for my brothers company and more

Category: Show Your Stuff

(no Rod, your PC does not have 20 cores, Intel lied to you ... and the rest of the world, Atom cores are not worth a dime).
 

Hey all I care about is I see that count when compiling kernels and things ... rather quickly,.....
  • rodw
  • rodw's Avatar
01 Feb 2025 07:34
Replied by rodw on topic good day to all (in some gtp languages)

good day to all (in some gtp languages)

Category: Off Topic and Test Posts

Snow here disappear in few days from top of mountain because wind .... so not sky with skins ..... than return and go .... but can done some little peaks .... tomorrow try again but snow is heavy now .... I hope in an other perfect day. Hello Toma!

Phew! the snow disappeared here too when the temperature hit 40.5 degrees C last week.
  • rodw
  • rodw's Avatar
01 Feb 2025 07:26

The dumification of humanity through internet

Category: Off Topic and Test Posts

I have no idea how us Aussies should spell it after that! 
Edit: Seems it was Silicon in the 70s when I last encountered the periodic table

I suspect Tommy lives in a pocket of the world who ignored the change in the 1800's
  • rodw
  • rodw's Avatar
01 Feb 2025 07:18

Homing an axis moves away from home switch!

Category: StepConf Wizard

It works now!


Is there some sort of step-by-step beginner's guide or something?
 

for I = 1 to 10
  read homing configutation docs
  have a play
endif

You might get after 8 iterations :)
  • rodw
  • rodw's Avatar
01 Feb 2025 07:13
Replied by rodw on topic Brilliant Bambu Lab

Brilliant Bambu Lab

Category: Off Topic and Test Posts

There are some 3rd party replacement consoles for Bambu labs that might revert it to open source. While since I looked
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