[aequis]

It appears DIP switch position is not my problem and neither is a no load
condition for the motors. Installed CNC Fusion hard parts and motors, checked
connections again, but the motors will not go. I will put up pictures of the
components in next post, any and all help appreciated.

Potential issues already addressed:
windows XP w/PP set to EPP in bios
E stop set to active low
went from no step (000) to 1/64 step w/no change in motor function
KL 4030 driver set to 3.0V and 2.7V w/o change in motor function
pin for pin checked out on parallel cable
motors are wired correctly for bipolar
C10 BoB has external PS, verified w/MM

[doorknob]

It appears DIP switch position is not my problem and neither is a no load
condition for the motors. Installed CNC Fusion hard parts and motors, checked
connections again, but the motors will not go. I will put up pictures of the
components in next post, any and all help appreciated.

Potential issues already addressed:
windows XP w/PP set to EPP in bios
E stop set to active low
went from no step (000) to 1/64 step w/no change in motor function
KL 4030 driver set to 3.0V and 2.7V w/o change in motor function
pin for pin checked out on parallel cable
motors are wired correctly for bipolar
C10 BoB has external PS, verified w/MM

Could your step pulse timing be too short? Have you tried "Sherline mode" to see if it makes a difference in the behavior? Maybe set the driver to 1/4 stepping or 1/8 stepping while doing those tests, if you haven't already done them.

I have not asked you about the next part previously, since you said that you did see some weak rotation from the motors, which would imply that the step and direction signals are getting through all the way to the drivers from Mach3 through the parallel port, cable, and C10, but in the interest of completeness it would be a good test to perform.

You mentioned earlier that you had gone through the system with a multimeter.

It would be good to use the multimeter to verify at least one further set of tests. If you measure the voltage between the DIR- pin of each of the axes (right at the driver's terminal screw) and ground (on the C10) as you use Mach3 to first jog each axis in one direction and then in the other direction, do you see that voltage as close to +5 volts in one direction and 0 volts in the other direction? And you have verified that the DIR+ pin of each axis is at a steady +5 volts?

KL 4030 driver set to 3.0V and 2.7V w/o change in motor function

I'm not sure that I understand that statement. How did you set the driver to 3.0V and 2.7V?