Primer on setting up 5th axis?

Hi all,

I don't know if the search function is working for me but I get no results searching for "set up 5th axis," or much of anything. I apologize if this question has been asked a million times but Id like to get my C axis going. 

I'm in the process of building a trunnion table and have been playing around with XYZA, with the C rotational axis wired to the Y on the 7i96s (running off Debian12) for now to check the build. Ideally I'd like to program sample stuff for it but I can't find a primer or instructions anywhere on how to do it. 

Many thanks,

Hal

If you do this in google:
"set up 5th axis" site:linuxcnc.org
it returns this:
www.google.com/search?q=%22set+up+5th+ax...sclient=gws-wiz-serp

Hey thanks Tommy, it gave me some results I'd already looked at but new ones too. I didn't think to add the Site restriction