On Tue, 5 May 2026, Marco wrote:
Hi,
I'm new to LinuxCNC and have issues getting started. I just treated
myself to a cheap import router and would like to get LinuxCNC to
control the machine. So far I'm struggling with the configuration.
Right now I'm in a position so LinuxCNC starts without errors (using
the axis or touchy GUI) but I can't seem to control the machine,
yet.
After failing to write a configuration from scratch, I'm now using
the following config as a base:
https://github.com/ccatlett1984/LinuxCNC_configs/tree/main/7c80
This didn't quite work out of the box, so I modified it. My current
config is attached. No clue if that is a good or working
configuration for my setup. My goal right now is to just get it to
control the machine, make simple X, Y, Z movements. No limit
switches, spindle control, coolant as of now. I'll add that later if
I can get past the inital setup.
My wiring so far is quite simple:
24V + GND on the 7C80 TB6
40pin flat cable to the RPi5
DM556 X - TB7, STEP/DIR 0
DM556 Y - TB8, STEP/DIR 1
DM556 Z - TB9, STEP/DIR 2
XYZ steppers + 48V to the DM556s
Nothing else. Current state: LinuxCNC starts with no errors. But
when trying to jog by clicking "manual control" ? Axis ? ?Plus? I
get:
joint 0 following error
emc/task/taskintf.cc 976: Error on joint 0, command number 110
And the machine doesn't move. So I think my config is incorrect. Can
someone shed some light on what might be wrong here, or suggest a
working minimal config? If I've done my research well, my setup
should be quite common and therefore well supported.
If you need further info, please let me know.
LinuxCNC 2.9.8
image:
https://www.linuxcnc.org/iso/image_2026-01-21-raspios-lcnc-2.9.8-trixie-arm64.zip
My hardware:
Pi5
15.6" touchscreen + external keyboard
Mesa 7C80
3x DM556
Marco
Which configuration are you using?
A number of the basic configurations on that site are incomplete
(missing stepgen setup and crucial stepgen setup parts)
The dmc_test cpnfig is the only one that looks complete to me.
Peter Wallace
Mesa Electronics
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