ROLAND CAMM-2 PNC-2300A Conversion?

[magicniner]

IIRC on the CAMM3 the stepper inputs were from a Z80 PIO so a printer port is already massive overkill and a break out board would be borderline ridiculous

A printer port provides those without electronics experience a very simple and quite cheap way to produce the required signals to run stepper drivers with a cheap ex-corporate PC, LinuxCNC/Mach3 and Linux or the OS specified on the PC's OEM license sticker.
A printer port provides those with electronics experience a very simple, quite cheap and very quick way to produce the required signals to run stepper drivers with a cheap ex-corporate PC, LinuxCNC/Mach3 and Linux or the OS specified on the PC's OEM license sticker.
Given that a BOB's primary function is to protect the computer and parallel port from an external electrical device I'm not really seeing what would be in the least bit ridiculous about what is simply good electronic practice.
Unlike some "lighter solutions" LinuxCNC/Mach3 support fairly standard and complete G-Code flavours allowing utilisation of a wide range of CAM solutions without worrying too much about what is/isn't supported.

- Nick