Clovis
Established
The SA-21 and SA-30 (roll film feeder) have different gears and a different motor. For the occasional scan of a complete roll a hacked SA-21 may be OK but not really for heavy usage.
Are there any resources about this? I haven't read about any SA-21 hack failures yet. I can understand why the SA-30 might have a different motor, but the gearing (the SA-21 moves the film via rubber rollers, no?) should logically be almost identical.