Advanced Search

Der Anhang sollte umbenannt werden in: qtdragon_handler.py

Hallo Arno!

(Google translated)

Hier ist eine angepasste Handlerdatei, mit der Sie mit f5 das Kontrollkästchen „Grenzwerte überschreiben“ aktivieren können.

Siehe hier (2.8.2. Handler-Patching):

linuxcnc.org/docs/devel/html/gui/qtvcp.h...cp:modifying-screens

Anweisungen zum Hinzufügen der Datei zu Ihrem Konfigurationsordner finden Sie hier.

Chris

Good idea, I tried setting the feedrate low, but no difference.

Then I measured with my oscilloscope. The Tang outputs all work as intended. Direction, Enable and Step. Focusing on Step the signal looked really good no matter what feedrate. However, the issue is the logic converter. I am using the Texas Instruments TX0108E. www.ti.com/lit/ds/symlink/txs0108e.pdf?ts=1730734048833 But the step output signal is only 0-2.5V and not the intended 0-5V. Sometimes the output goes up to 5V, but not very often. The enable and direction pin are a bit more reliable but even they are not always 0 or 5V and are sometimes in between. I thought I made something wrong or the level shifter are damaged, but found this video. The issues he has are very similar to mine and even all the comments under the video don't give an solution.

Anyone an idea how to get the TX0108E working correctly ??

I ordered last time some of those as well, the order is supposed to be here this week. I have 1x 3.3V to 5V and 2x 3.3V to 12V in the order. I wonder if i can use the 3.3V to 12V with just 5V for the stepper driver www.aliexpress.us/item/3256803586254541.html

 

Hey Tom good day to you, my names Tom as well BTW
(theres never enough Toms on the job! haha)
So THCAD5 would be for a divider board with a 0-5v range and thc10 would be for a divider board with a 0-10v range correct? So I will need to see what the voltage output of the divider board on my hypertherm is if there is one or purchase a divider board and wire it up to the raw arc voltage correct? I apologize for bugging you guys with so many questions but I really don't want to order the wrong components so it is very much appreciated.

Please supply more information "does not work" isn't very helpful.

What IP addresses are you using ?

Have you tried toto configure the pi ?

Have you looked at the announcement thread for the RPi 5 image ?

Keep in mind that the image is somewhat different to a standard Raspbian OS iamge, so a lot of the info you'll find for that is not applicable.

Tommy has given good advice, older PCs a so much better and easier than an RPi to setup for Linuxcnc.

But to help you we will need more information, what have you tried ? What has happened ? Do you have any error messages.

ERROR - INSERT COFFEE!!! Thanks Aciera !!

DERP...

What it is SUPPOSED to be... like in My Laguna config...

[RS274NGC]
PARAMETER_FILE = linuxcnc.var
SUBROUTINE_PATH = ./ROUTINES/
FEATURES = 12

What did I have???

[RS274NGC]
PARAMETER_FILE = linuxcnc.var

Jeeze... ok then... problem resolved!
Thanks for the kick in the head to get me restarted!!!

I would probably get a working xyz Ethercat config with axis.
Then I would use pncconf to build a qtplasmac config then merge them together by hand

You will need to work out how to sense torch voltage. I would look for an Ethercat module that sensed analog voltage.
This has been done in the past but it was before QTplasmac.

The mode can be automatically selected based on voltage sensed. You know at startup its not cutting, start in hypersensing mode but if the voltage exceeds 24 volts, calibrate to THC range and stay there until it falls to say < 5 volts, go back to hypersensing mode.

Yes will need 2 factors one for the arc voltage and one for the Hypersensing, also the QtplasmaC need to change from THC to Hypersensing Mode.
 

Aciera would you like to be a moderator?

JT

Do you happen to have any PC, even 10 or 15 year old will do?
Sorry i am no help, but i really do not like RPI, it is way to much trouble for nothing.

I had bad experience with capital letters in naming of subroutines.
try a lovercase 'o'

O<safe-go-home> sub

Well unfortunately, I have not been able to reproduce this.

Using your maho_vfd.mod example either with a running
LinuxCNC instance or your hal script I get all stepgens fb positions
= 0 and stable (or running as expected under LinuxCNC)

This is with LinuxCNC 2.9.3, but I don't think the have been any
mesa modbus changes between 2.92 and 2.93 (last mesa modbus
change was in Sept 2023, and 2.92 was released in Dec 2023)

Edit: There's definitely a loose wire in mesa modbus because if I change your script

to: 

#loadrt hm2_eth board_ip="10.10.10.10" config="num_stepgens=5" # This causes jumps in hm2_7i95.0.stepgen.00.position-fb
loadrt hm2_eth board_ip="10.10.10.10" # This appears to work without issues

I get a segv!


 

Help.
I'm no linux guru and I'm having trouble finding an installation path the gives me a working system with connection Pi to the Mesa card.
By background I'm a retired electronic engineer turned C++ programmer doing large models and I actually worked for Hitachi Seiki years back until they died.
I have added steppers to a bench top milling machine and I really hoped to get LinuxCNC running on it.
I bought a Pi-5 with an NVMe hat which runs fast and a Mesa 7i95T to do the heavy lifting,
I tried the Pi-5 system image from this site but I can't get it to Ethernet into the Mesa.
I can't get a lot of the Pi commands to work to control the NVMe or the networking although they work on the 'standard' image.
I'm confused as can be and google gives me contradictory sites that often give me command that don't run or generic instructions that I can't trace to concrete things to try.

Is there an ELI5 guide somewhere, or do I have to give up on my current hardware and do it another way? If so what?

Yes I have had done it ... I will post them tomorrow ... Take an inspiration from them there will be a ET200B from siemens, keb f5 vfd and kollmorgen s343... But... I am out of shop today .. family stuff

Regards