4th Axis rotation angle limit problem

Hi again Andy

I found my mistake my setup "astep" and "adir" and I copied from the thread and pasted as is and here they are "a-step" and "a-dir" :laugh: common mistake with blindly just coping and pasting

I changed velocity to velocity-cmd

Thanks again Andy for the help, much appreciated

I am getting much smoother signals to the steppers with LinuxCNC than with Mach3 resulting in higher max speeds from my steppers, that is why I am in the process of changing to LinuxCNC.

Regards

Piet

Hi I have been trying to get my A axis to work in velocity mode by following the instructions in this post. I seem to have something wrong, it works as normal but not in velocity mode.
I have enclosed my config files if someone could have a look and point me in the right direction. There is a note in the file describing what I have done
Thank you.

Hi

I have attached my working files - have a look at their set up - to run the spindle in velocity call the code M100 and to stop call M101 - how to use m100 is explained in the m100 file's heading (my volcicity channel is set to Axis5) but it works on a xyza channel setup as well.

Hope it helps

Piet

Hi Piet
Thank you for your quick reply, what a difference a space makes.
For anyone else following this post I needed to make the following changes to the the M101 file in Andy's post above.
rpm = $1 should be rpm=$1 (no spaces).
Add the line halcmd setp stepgen.4.enable TRUE
Regards
John

Since this thread started the mux_generic HAL component has been added to LinuxCNC.
www.linuxcnc.org/docs/html/man/man9/mux_generic.9.html
So there is now no need to re-configure pins on the fly, the mux-can to it.

Hi Andy
How can I find out how this works, the link you give doesn't mean a lot to me.
Regards John