EMCO Tool Turret and CNCPRO

CNCPro has M03, 05, 07 .... M11 commands to activate and deactivate a
pin on the parallel port.

Using a combination of what I suggested the other day along with one of
these, we could use the following:

(back the tool away safely)
M03 (turn on the motor)
G01 Ax Ft (move the A axis <a fictitious axis> at F feedrate to position
x)
G01 A0 Ft (take an equal length of time, which is what counts)
M05 (turn the motor off)
M10 (turn the motor on in the reverse direction
G01 Ay Ft (similar to above, but a shorter length of time)
G01 A0 Ft (ditto)
M11 (stop the motor, as it's jammed against the ratchet where it
belongs)
(start cutting with the new tool)

CNCPro has no sensing inputs, apparently, so feedback isn't an option.

This approach would avoid having to use timers on the motor control
board.
I haven't looked at TurboCNC or Master5 or whatever.... /mark