Raspberry Pi 4 Tutorial - fatal error

If you followed the tutorial past the point of installing LinuxCNC you just open a terminal and type

I add them to the right click menu by opening a terminal and running the menu config tool
I'll work on the tutorial some more when I return from vacation.

Thanks for the feedback.

JT

I tried linuxcnc at the command line but got "command not found".

I'm going to try what Andy said and see what happens. I'm going to get a couple more SD cards so I can run through it again without wiping out this one.

Thanks

Did you install LinuxCNC?
gnipsel.com/linuxcnc/uspace/rpi4-emc.html

The next step after installing OpenBox is to install LinuxCNC...

JT

Yes, I did. But I just did everything on the Install LinuxCNC
page again and it is now working. I must admit that every time I read about someone wanting to use a RPi my thoughts when to "Do you want to build a CNC machine or play with a Pi?" I must say that so far I am impressed with how snappy LinuxCNC feels and how bright the display looks. I have a Pi 4 with 4mb. Now to run the latency test and see how that goes.

Thanks
John

I ran the latency test with 6 glxgears running but no other abuse.
Servo thread (1ms): 73079
Base thread (25us): 93953

If I run just the servo thread the number goes up over 100,000.

Anything I should try to lower the latency on the Pi4?

I may get a 7i76E and give this a try. Right now I'm using a 6i25+7i76+7i83

John

You could also use your 7I76 and 7I83 with a 7I92H or 7I92M replacing the 6I25