Hi, David, Rich
I'm Thinking:
Max NC uses ether Quadrature or Rollover (Wave) on Most of there Drives, If Stepper, Max NC 10 "Checked" on Config, Ports & Pins Page.
Then It's as follows, Port's and Pin's settings have No Affect on the settings Just Motor Tuning Settings for the most part.
You may need to Re-Wire some Pin's to check it out/get it Working.
"Z" axis pin's 2,3,4,5,
"X" axis pin's 6,7,8,9,
"Y" axis pin's 1,14,16,17,
It uses all the output pin's so I don't think it has an Enable pin from Mach3.
In Config, Ports & Pins, Output's Page, No pin's selected.
In Config, Motor Tuning, Set Step & Dir. Pulse's to 5
Then Continue with Motor Tuning and Such.....
SEQUENCE For Z Pin's
Z | 2 | 3 | 4 | 5 | Pin's
A | 1 | 0 | 0 | 0
B | 0 | 1 | 0 | 0
C | 0 | 0 | 1 | 0
D | 0 | 0 | 0 | 1
SEQUENCE One Dir. A,B,C,D,A,B,C..... or Other Dir. D,C,B,A,D,C,B......
Let us Know, Hope this Helps get you Going.
Chip