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  • MartynT
  • MartynT
29 Jul 2024 20:13
Replied by MartynT on topic Inch display on Metric machine?

Inch display on Metric machine?

Category: General LinuxCNC Questions

Well I just looked at the solution and although it does show inches the Manual Control (F3) is still working in mm’s, and of course so is the pendant. So it actually makes the situation more confusing. 

Come to think of it I had actually noticed this choice under View before. 
  • my1987toyota
  • my1987toyota's Avatar
29 Jul 2024 19:57
Replied by my1987toyota on topic Interesting Youtube Video

Interesting Youtube Video

Category: Off Topic and Test Posts

correct me if I am wrong but isn't MacOS pretty much UNIX?
  • tommylight
  • tommylight's Avatar
29 Jul 2024 19:45
Replied by tommylight on topic Was the SPAM topic a test

Was the SPAM topic a test

Category: Off Topic and Test Posts

Probably, but more importantly it was to prove that some users do not bother much with where should they post.
I absolutely do not mind posting on the wrong forum section, been there done that, and i gladly move posts/topics around when prompted, or when it seems OK to.
For some stuff it can be really confusing as to where the right place is as there might be several sections that will fit, so just pick one and go with it. And if at any time later appears to be a better place for it, just let us know so we can shuffle stuff around.
-
Personally, the most important part is keeping things clear and simple and easy to find for new users/members.
  • scottlaird
  • scottlaird's Avatar
29 Jul 2024 19:44
Replied by scottlaird on topic Exotic data types in .xml config

Exotic data types in .xml config

Category: EtherCAT

Do you have a more concrete example? I'm trying to think of how that's different from either an UINT64 or 8 UINT8s, depending on use.

Which device?
  • blazini36
  • blazini36
29 Jul 2024 19:40
Replied by blazini36 on topic Flexible GUI

Flexible GUI

Category: Other User Interfaces

In the plot widget, to automatically reload a file when an offset has changed you could maybe use the fingerprint
For example:

        fingerprint = (self.logger.npts,
        self.soft_limits(),
        s.actual_position,
        s.motion_mode,
        s.current_vel,
        s.joint_actual_position,
        s.homed,
        s.limit,    
        s.tool_in_spindle,             
        s.g5x_offset,
        s.g92_offset,
        s.rotation_xy,
        s.tool_offset)

        if fingerprint[9:12] != self.fingerprint[9:12] or s.file != self._current_file:
            if self.display_loaded:
                self.load()

        if fingerprint != self.fingerprint:
            self.fingerprint = fingerprint            
            self.update()
https://files.catbox.moe/5km48d.mp4
 

Any chance you can share the whole configuration you have shown in your post a couple pages back? That looks pretty good. I've been pecking at a Flex UI for a bit but haven't gotten very far yet.
  • tommylight
  • tommylight's Avatar
29 Jul 2024 19:32
Replied by tommylight on topic Interesting Youtube Video

Interesting Youtube Video

Category: Off Topic and Test Posts

You do realize most Linux development is funded by the US government and intelligence agencies??? Most linux development is funded simply to keep unix alive, which was funded largely by public institutions.

When did this happen?
Any proof of anything vaguely related? I really doubt it.
Or is this another "i seen it on tiktok so it is true" thing?

Y'all can't see the truth, even EMC was started by NIST a federal agency.

That is true, but it flourished since it was released to public domain.
  • endian
  • endian's Avatar
29 Jul 2024 18:56
Exotic data types in .xml config was created by endian

Exotic data types in .xml config

Category: EtherCAT

Hello,

have anybody idea how to define data type array of bytes in the ethercat-conf.xml file which is loaded during startup of lcec?

I am working currently on some configuration file and in the twincat 3 enviroment is slave described PDOs as array[0...7] of bytes ...

I think if there will be definition over "complex" data type and inside will be byte to byte definition of each variable ...have anybody experiences with something like I desribed higher please?

thanks

regards
  • trisa25
  • trisa25
29 Jul 2024 18:30 - 01 Aug 2024 17:54
Ebosa 140 CNC retrofit was created by trisa25

Ebosa 140 CNC retrofit

Category: Turning

Hello,
I am in the process of retrofiting a ebosa 140 CNC lathe. It originally had a Siemens 3T control, Siemens brushed servos and Siemens brushed spindle motor with thyristor drive.

I will reuse the spindle motor with its drive, but will replace servomotors with new Lichuan ethercat motors.For IO I will use Beckhoff modules and Mesa hardware (6i25, 7i85, 7i73).Here are some pictures of the build currently.

 
This is the control cabinet, wiring still in progress.

 
And this is the control panel, laser cut stainless, cherry switches and potentiometers for overrides. screen is a chinese 14 inch touch screen.
  • smc.collins
  • smc.collins
29 Jul 2024 18:23
Replied by smc.collins on topic Interesting Youtube Video

Interesting Youtube Video

Category: Off Topic and Test Posts

You do realize most Linux development is funded by the US government and intelligence agencies??? Most linux development is funded simply to keep unix alive, which was funded largely by public institutions.

Y'all can't see the truth, even EMC was started by NIST a federal agency.
  • Anton
  • Anton
29 Jul 2024 18:06
Replied by Anton on topic error finishing read!

error finishing read!

Category: Driver Boards

Hello Julian,
I had already commented out this line as a test, but that didn't help.
I now simply call the following line when starting via rc.local:
     sudo ethtool -C enp1s0 rx-usecs 0
I leave it like that.

The installation of LCNC was really annoying! 
In contrast, I like the configuration with hal and ini very much.
I could configure a test axis relatively quickly (homing, limit switch and glass scale) - see:
.
Now I'm waiting for LCNC 2.10. This version should include QT-Dragon-Lathe. With simCNC (which I use on my milling machine), the complete screen can be created and programmed quite easily (Python). I'm curious to see what it looks like with Qt-Dragon. 
However, as I haven't yet found a used table lathe for conversion to CNC, I won't be bothering with LCNC for the time being.


Greetings Anton
  • my1987toyota
  • my1987toyota's Avatar
29 Jul 2024 17:40
Was the SPAM topic a test was created by my1987toyota

Was the SPAM topic a test

Category: Off Topic and Test Posts

  So for maybe a week or so there was a section called Spam for Spammers. I don't know if it
was set up as a joke or not . I was certainly having some fun with it myself. Then someone
posted a legitimate question in it and a day or so later the section has disappeared.
What happened?. 
  • Becksvill
  • Becksvill
29 Jul 2024 17:33
  • Becksvill
  • Becksvill
29 Jul 2024 17:29
Replied by Becksvill on topic big 5axis mazak horizontal cnc mill

big 5axis mazak horizontal cnc mill

Category: Show Your Stuff

Only reason to make this thread was too sure people how good Linuxcnc is especially on a big CNC.

And how we deal with potential issues like no jerk control.

And 1 line look ahead for 4axis

Plus any other issues.

I have 80 tools in magazine is that a issue still?
  • Becksvill
  • Becksvill
29 Jul 2024 17:26
Replied by Becksvill on topic big 5axis mazak horizontal cnc mill

big 5axis mazak horizontal cnc mill

Category: Show Your Stuff

Feel free to discuss here
  • thomaseg
  • thomaseg
29 Jul 2024 17:25
Replied by thomaseg on topic Tuning of servo-drive

Tuning of servo-drive

Category: EtherCAT

Hi again,

For "posterity" on google i thought i'd show what i did on my CTB-servodrives. I managed to figure out that if i turned up for the gain(register Cn.29) from the factory setting of 100 to 350 i got quite a lot better results. Now a "step" looks something like this:
 
Greatly reduced the follow error and made it hit the required position a lot faster/better. I tried higher values, but then it will overshoot. This enabled me to turn "ferror" down to 10 and "min_ferror" down to 1 in the settings without getting "follow error" when jogging....this is better, but not sure if it is good/low enough?

However, i still have a question: There is a delay between "pos-cmd" and "sta-ActualPosition", obvious this can never be 0, but it seems like there is something like 50ms between the two according to the graph...this seems "long" to me...is that normal? I'm guessing that EtherCAT has something to do with this, even though i think it should be an order of magnitude lower if it stems from EtherCat. Anyways, i'm unsure if this will affect the performance of the machine significantly...?

Question: What is this delay on your machine? I'm trying to either comfort myself and accept that this is a normal delay, or determin if i have to keep digging in the drives registers to try to make the drive follow LinuxCNC in a tighter way...somehow...

/Thomas
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