increase print resolution by increasing stepper resolution possible? (1 reply)

Hi,
I'm designing a delta printer for high precision printing and I'm wondering if adding a planetary gearbox with ratio say 100:1 which decreases the stepper angle of a NEMA 17 motor of 1.8 degrees to 0.018 degrees will benefit the print quality dramatically? Please share some examples if you have any.
Would using a gearbox require reconfiguration of the printer firmware? (would like to use Repetier)
Would using a printed planetary gearbox be suitable?

example: [www.phidgets.com]

Thanks!