Hey Nick long tome no talk. I need to email you with regards to something about my mill and I keep forgetting.
Terry:
Here is a link to the mach 3 manuals. The one tthat says "using Mach 3 mill" is the one you want. I gave the link to all of them just in case the others were of interest as well. They are all very comprehensive if a little techy for someone starting out.
http://www.artsoftcontrols.com/documentation/
I would try to contact your seller. Although my mill is peace meal I went with vendors that had a good reputation of support especiallly to the novice.
Nick Carter being one of those.
The DRO on Mach is just that. Manual moves are entered in a different way using single lines of code. This is the only way as far as I know.
As far as the pins and ports setup my controller came with a sheet that defined the configuration for it. Yours should have too.