Starting over

andypugh wrote:

Patrick wrote:

Eventually I would suggest installing the 5i25 and upgrading LinuxCNC to 2.8 where support for systems with more than one motor per axis are significantly better supported.

Is there an iso for 2.8?

andypugh wrote:

This setup should be really very close:

Since Launch test panel did't work I tried Test/Tune Axis. I ran into a snag with pncconf @ test/tune. I suspect it is my error but I am not that far into pncconf.config yet. Any hints?

andypugh wrote:

I think that error is an actual bug.
github.com/LinuxCNC/linuxcnc/issues/159

Try skipping the test/tune part, then worry about it if the axes don't actually move with the final config.

Is there an external Test/Tune Axis app?

andypugh wrote:

There are ways. With a stepper system the axes will either work with the final LinuxCNC config, or they wont.

Perhaps I'll use stepconf, test the wiring, tune it a bit and transfer the values to pncconf. Unless the same bug exists there.

The setup works on the parallel port but the same basic values are incorrect in the pncconf version. My pncconf assignments match the suggested configuration.

In this version, X & Z do nothing but Y moves the spindle up and down. Please review the enclosed configuration files and tell me where I am going wrong.

If this is for a G540 I would set the steplength on all axis to 2500 minimum (1000 will not work reliably)
If the axis are swapped that suggests that you are not using the proper FPGA configuration

To write the proper FPGA configuration you would:

sudo mesaflash --device 5i25 --write 5i25_g540x2.bit
sudo mesaflash --device 5i25 --reload

and to verify pinout you would:

sudo mesaflash --device 5i25 --readhmid