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blazini36 wrote:

Kind of a bummer about the bold text thing
 

What bold text thing?

JT

Hi All,

I realise this is a very old thread - but I have a maho 400p too that is dead, as well and am looking to update the control (mine was a  Heidenhain TNC 135).  I don't hold much hope in getting the EPROM programs even if I did find a new heidenhain controller, so was thinking of a very similar approach to you stormpetrel.

I have no experience in CNC  refitting whatsoever but I hope to dust off some experience in PID controllers and power electronics from a very very long time ago, so I think I can manage the learning curve and I plan to take a lot of time to work out what to do with my machine.

I don't want to convert to three axis cnc or to replace trapezoidal with ballscrews, I want to get the machine back to a manual mill with a 'smart DRO', intact EMO chain and hydraulic functions etc, and hopefully keep the point -to point control function as it used to have, so I am thinking of one axis cnc and selecting each axis at atime in code.

So, to my question :  (I hope someone reads this given the original thread was 15 years ago!)
- the 5i20 and DAC approach was the way you suggested PCW back in 2010,  but given the time elapsed between now and then, what would you recommend now?
-stormpetrel, how did your project go, did you find it worked out, and where would you do things differently?
- as a starting point, and to see the complexity of all this would it be possible for you to send me  the design that you settled on back then?

I'm new to this forum and it was not apparent how private messages are sent. if this post doesn't find any replies I might repost it as a separate thread with reference to this one.

Thanks in advance,

Pat

fully_defined wrote:

The maximum acceleration I calculated as 49800 mm/sec^2 is WORLDS away from the default 750, and pncconf doesn't allow more than 10000.

Unless that is a very small 3D printer, 49800 mm/sec^2 is way, way, way to high.

Sometime this happens if your gcode is written to use absolute IJK coordinates on arcs but you are using relative coordinates or vice versa.

Looking good!

JT

Allan, I have not quite got to 6.12 on my installer but I did  merge ther upstream to my master branch to get 6.12 support
github.com/rodw-au/rpi-img-builder-lcnc
This runs on a normal PC and cross compiles.
The main branch did compile 6.12
It would need cloning my 2.9.3 branch to a new branch and merging the master branch into it
Then a bit of massaging to remove the existing RT patch and configuring a few config files in the top level folder.

I remember seeing someone here saying you needed to set a few more config settings that used to be set in the patch. They also included a script to set it up. Perhaps that is your issue.

Lol yeah, I noticed them in the docs and started adding them before updating the debs.....

Kinda tedious but it's getting there...

 

Kind of a bummer about the bold text thing

That is a valid error. Why you are getting it is impossible to say without at least seeing the gcode program.

blazini36 wrote:

I also noticed there's no good binary indicators in qt5's standard set of widgets, like LEDs or even a button that changes appearance on input. The only thing I've found is hal labels, but even then I think they are only actually good for displaying numeric values. If set to "bit" type input, they just display true or false. I don't see any way to make a text string appear or disappear at least. Looking for something that can just indicate a fault.

If something like this is already there just point it out, I'm good at missing things.
 

You didn't miss anything unless you looked in the last few minutes lol. I just added that feature.

gnipsel.com/linuxcnc/flexgui/hal.html#bool-label

 

JT

Hello all. I'm trying out LinuxCNC 2.9.3 on the 6.12 kernel running on a Raspberry Pi 5. Installation goes fine, but LinuxCNC refuses to acknowledge I'm running a realtime kernel. On startup, it spits out the message: "Note: Using POSIX non-realtime"

However, `uname-a` shows:
Linux plasma 6.12.8-v8-16k+ #1 SMP PREEMPT_RT Tue Jan  7 22:00:59 CET 2025 aarch64 GNU/Linux

My installations script is here:
gist.github.com/alangibson/12700b72f737889536565896143eefe0

Can anyone make out my mistake? Or is there a known issue? I've searched but found nothing applicable.

You can edit the ini file directly to set the accelleration.
Read the docs on ini file configuration
But I think you will find more than 3000-5000 will shake your machine apart,

All the menu items have push buttons as well.
gnipsel.com/linuxcnc/flexgui/controls.html#push-buttons

Let me look into adding user text to a bit type hal label.

JT

TripleM wrote:

Hi,
hier kannst du bei Autodesk ein Standard PP herunterladen, der bietet schon einmal ne gute Basis, mit diversen Zyklen die schon integriert sind.
Fusion-PP   (nach LinuxCNC Turning suchen)

viele Grüße
 

Danke für deine Antwort, aber das ist genau der PP (linuxcnc turning_44113) den ich nutze und der diese "Besonderheit" hat, welche ich im 1. Post geschrieben habe.


Gruß
Olli

Now that's cool

The invert pin works the opposite way. Set it to 1 and the output goes off.

Maybe this document can shed some light on the 3 mA
download.beckhoff.com/download/document/...DK9222-0909-0008.pdf