Hi Gary,
Good news that you have found 4.29 Volts on the LPT port.
Now the tedious bit starts (remember that successful fault finding requires you to be very methodical – take it one step at a time and only change one thing at a time).
I am making the assumption that your controller board does if fact work and that you have the 24 Volts ? applied to the board and everything else connected correctly.
The first thing is to get the stepper motors to ‘lock’ when the system is powered up. This appears to be related to Config / Ports & Pins / Output Signals / Enable 1 to Enable 4 settings. So try all output pin numbers (1 to 9, 14, 16 & 17) both Active High and Active Low until you find the right combination to ‘lock’ the motors.
Once you have achieved this than I will suggest a possible next step in the procedure.
Tweakie.
This is what my little helper gets up to in his spare time.