Regarding the perforator software and hardware:

For those of you who desire punching but do not want to built the
electronic drivers, and want ready-to-roll software, we have the
solution:  The Wayne Stahnke "Punch" software and the Octet Design
PD1-100 or PD1-128.

The PD1 products were designed for this software and will work with
it, with some additional features not found in other [MIDI converter]
products:

 - connects to printer port of PC
 - 104 to 128 optically isolated outputs drive 55 volts, 2 amps
 - direct connections for unipolar stepper motor, with separate power
 - solid state relay for main motor
 - outputs switch to the negative of the solenoid power supply,
     (common positive)
 - output duty cycle control to reduce power during hold:
     after the solenoid has accomplished its move with full power,
     the current is reduced to 25% (adjustable). This feature can be
     disabled.
 - catch diode on every output to the positive of the solenoid
     power supply
 - trigger switch input, optically isolated, can be disabled
 - price $479 for 104 outputs, $509 for 128

Laurent Coray
Octet Design Corp.,  7312 SE Yamhill St.,  Portland  OR 97215
sales (800) 533-6434 / (503) 251-8214 / fax (503) 256-8441
www.octetdesign.com