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  • HansU
  • HansU's Avatar
03 Jul 2025 06:47

GMOCCAPY 3.4.9 LCD7" can not display the whole GUI

Category: Gmoccapy

Can you post some screenshots to show the difference?
  • endian
  • endian's Avatar
03 Jul 2025 05:57 - 03 Jul 2025 05:59
Replied by endian on topic LinuxCNC and Beckhoff AX5000 servo drives

LinuxCNC and Beckhoff AX5000 servo drives

Category: EtherCAT

just create a project in the TC3 ... setup all stuff as DC, SDOs PDOs, task cycle, names of everything ... everything will be written in the .xml of master export ... there it will be right stuff and there will be probably nothing to customize ... 

download the tool ... launch them .. write "complete" or "c" .. then drag and drop .xml export and everything what is needed to have in the .xml file will be created in the new ethercat-conf.xml automaticly .. then just connect everything in the .hal file

AX5xxx is SoE .. you will have to create custom hal driver for them probably... I do not have experiences with them at all

I do not know what which "ax5106.xml/ax5203.xml" you mean..

motor you need to tune in the beckhoff drive manager which is part of the TC3 ... it motor is in the catalogue, no extra tunnig is necessary

 
  • cmorley
  • cmorley
03 Jul 2025 05:44
Replied by cmorley on topic Import pin value in handler.py

Import pin value in handler.py

Category: Qtvcp

Did you set any callback in designer or in the handler?
  • jimmyrig
  • jimmyrig
03 Jul 2025 05:10
Replied by jimmyrig on topic Homing brain fog?

Homing brain fog?

Category: Basic Configuration

Glad I'm not the only one loosing 100 IQ points when setting up homing......your description is perfect lol.


If your homing switch is by the operator
Set y max to zero
Set y min to -145
Leave default homing.
Set your 0,0 in g54 after startup.

The above sets 0,0 to the upper left. Getting it to the lower left isn't possible without flipping an axis (right hand rule problems).....hence the g54 zero after boot up.


If your homing switch is away from the operator....this one gets rough.
Same idea as above
Y max is now 145
Ymin is zero
All homing is inverted. (Direction, latch, etc)
Then set the y offset to -145 and it should home then drive back to the operator

This is from memory so it might be wrong....but that's the general idea. I make sure my axis is moving in the correct direction, if it's not I flip it electrically, not in software, to make this easier.
  • bentiggin
  • bentiggin
03 Jul 2025 02:28

scaling for machine units per second at 10V

Category: General LinuxCNC Questions

While attempting to tune some servo motors, I see pcw often recommends setting the ouput_scale in machine units per second at 10v.
I like this idea, but am having trouble implementing it on my retrofit.
Machine units are inch.
These are old servos being controlled by a mesa 7i97t using analog 10v.
I can't find any info on the motors, but they say 3,000 rpm on top.
Can I assume that 10v will spin the motor at 3,000 rpm?

Regardless, I am struggling with the gear reduction math.
The motors have a 16 tooth pulley going to a 60 tooth pulley.
the 60 tooth pulley spins a 25 tooth gear that has a dp 20 pa 20.
I come out with 1 rev = 1.047".
(3000x1.047..)/60=52.35..ips.

Would this mean i set output_scale to 52.35 in the ini file?
Should max_output be 0?
Can I set ff1 to 1?(This seems like the best reason to scale volts in this way)
And just tune p for vibration?
Or should i just stick with jt and tommy's tuning tutorials?

Thanks in advance.

 
  • langdons
  • langdons
03 Jul 2025 01:07
Replied by langdons on topic Homing brain fog?

Homing brain fog?

Category: Basic Configuration

You don't need a combined home/limit.

The home switch is also a soft limit.

(don't run the machine unless it is homed of course, that would remove the soft limit, which would be bad)

IIRC (It's been a while), home is always 0.

Run PNCconf and create a new config and see what the default is.

Worked for me.

Is there some reason the home sensors can't be at 0?

Try stuff out 'till it works (or you start to feel tired)!
  • jhandel
  • jhandel
03 Jul 2025 01:02

PID tuning when you have a tuned Servo in CSP mode?

Category: EtherCAT

I am building out POC with Teknic ClearPath EtherCat servos and so far the Cia402 driver is working great.. I have a question around PID tuning.

I ran around in circles trying to get the right P, I, D, FF, FF1, FF2, etc settings and couldn't get the servo anywhere near its limits before it would fail out with a joint follow error.  

I got rid of all the PID settings and now it won't fail on following but it runs a f-error of about 5.8 when I do some long mock moves (the 5.8 on the scope is a nice trapazoid shape with a ramp up, flat top and a ramp down.. )

So folks with servos that have their own internal control-loop, how do you configure your PID or tune so that when you have 3 of these guys going their combined f-errors don't cause you to make wonky parts? 

Thanks in advance..  Since this is mostly a theory question I'm not posting configs, but happy to if folks ask. 
  • langdons
  • langdons
03 Jul 2025 00:52
Replied by langdons on topic Homing brain fog?

Homing brain fog?

Category: Basic Configuration

Be aware that while LEDs should last forever, their brightness diminishes with age.

Eventually, the sensors won't detect homing.

I would recommend physical switches, but whatever.
  • langdons
  • langdons
03 Jul 2025 00:49
Replied by langdons on topic Homing brain fog?

Homing brain fog?

Category: Basic Configuration

I had the same problem with my Z-axis.

I fixed mine by recreating a new config with stepconf and using the default values as guidance.

Remember that a travel of -140 <–> 0 ≠ 0 <–> 140.

It's weird sometimes.

I remember that "What the....." feeling.

(bewilderment is the word)

(140 is just an example)
  • PCW
  • PCW's Avatar
02 Jul 2025 23:58
Replied by PCW on topic Configuración thcad2 con mesa 7i96s

Configuración thcad2 con mesa 7i96s

Category: General LinuxCNC Questions

I don't think there is a pin 0 issue as this is a 7I96s and the encoder is on pins
27,28,29

Language may be the issue, I don't know enough about locales and translations
but do all strings in the source get translated? (en_US):

                    if "Arc Voltage" in pinchanged:
                        self.d._arcvpin = pin
                    elif self.d._arcvpin == pin:
                        self.d._arcvpin = None
                    if self.d._arcvpin and self.d.frontend == _PD._QTPLASMAC:
                        self.p.page_set_state('thcad', True)
                    else:

 
  • kworm
  • kworm
02 Jul 2025 23:34
Replied by kworm on topic Configuración thcad2 con mesa 7i96s

Configuración thcad2 con mesa 7i96s

Category: General LinuxCNC Questions

Hi, I had the same issue and there was a problem with pncconf displaying the THCAD page if the pin number was 0.  I made a pull request that has been merged a couple of days ago into 2.10 master.  You could either use an input that doesn't have a pin number of 0 or upgrade to the 2.10 master.

Hope this helps.
  • RogEnk
  • RogEnk
02 Jul 2025 23:24
Homing brain fog? was created by RogEnk

Homing brain fog?

Category: Basic Configuration

Hi all,
Finally got around to LinuxCNC'ing my cheap bench top mini mill, making the jump from Arduino/GRBL (Ughh) to a Mesa7196S.
Problem is my Y axis is making me feel like my IQ has plummeted..

X and Z, perfect (have opto sensors at Z+ and X- (X is mounted to the left of Y saddle as viewed from front - aiming to have bottom left corner as my 0,0).

Unfortunately I appear to lack the logic to get the Y limit configured so that it can be a combined home/limit at +145mm without mirroring the Y axis!
For clarity: I want to home the machine by moving the bed fully to the right for the X axis (working) and fully towards the idiot Operator (tool max +Y), but everything I have tried either inverts the Y or results in soft limit exceeded.

My ini and hal are attached, any help will be very much appreciated!

Cheers,
Rog
  • PCW
  • PCW's Avatar
02 Jul 2025 23:20 - 02 Jul 2025 23:22

7i92M very weird communication problem!!!

Category: Installing LinuxCNC

--- 10.10.10.10 ping statistics ---
60000 packets transmitted, 60000 received, 0% packet loss, time 60420ms
rtt min/avg/max/mdev = 0.057/0.276/16.993/0.227 ms, pipe 2

OK that (almost 17 ms) is the issue.

Depending on the Ethernet hardware on the host, solutions are:

If it's a Realtek MAC, install the DKMS driver

Disable PCIE/Ethernet power management

Make sure all power management is disabled in the BIOS
It that's not good enough, pin the Ethernet IRQ to the last processor
and use isolcpus in the kernel command line.

Here's a long  thread on solutions to this issue:

forum.linuxcnc.org/18-computer/56380-error-finishing-read-sigh
 
  • ANGELOS13
  • ANGELOS13
02 Jul 2025 22:56
Replied by ANGELOS13 on topic 7i92M very weird communication problem!!!

7i92M very weird communication problem!!!

Category: Installing LinuxCNC

--- 10.10.10.10 ping statistics ---
60000 packets transmitted, 60000 received, 0% packet loss, time 60420ms
rtt min/avg/max/mdev = 0.057/0.276/16.993/0.227 ms, pipe 2
  • PCW
  • PCW's Avatar
02 Jul 2025 22:09 - 02 Jul 2025 22:10

7i92M very weird communication problem!!!

Category: Installing LinuxCNC

OK, so there is a real time issue that needs to be addressed
before LinuxCNC will run on that system.

To get a rough idea of network latency:

sudo chrt 99 ping -i .001 -q -c 60000 10.10.10.10

This will run for a minute and then print statistics.
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