----- Original Message ----- From: <KnudsenMJ at aol.com> > Some hobbyists have built MIDI-driven roll punching machines, using > stepper > motors and cables from vintage printers and plotters. I'd be inclined to try to use a sign cutting machine since they are close to what is desired. See http://www.keithbunchassociates.com/FC4100.htm as an example. Neil