While you may be able to achieve acknowledged prints at abundantly top resolutions with Din 975 threaded rod, the apparent accomplishment at these resolutions will about be abundant bigger by the college aggregate of absorption accomplished with a leadscrew.
Accuracy is important for accepting the adapted all-embracing actualization and ambit of a print. Absorption allows for smooth, beeline edges, able tolerances on printed locations (particularly applicative if columnist alliance parts), and above apparent finish.
About Leadscrews as a 3D Printer Drive Mechanism
Leadscrews are brash for beeline motion. They can absolutely be costly, and as such may not be adapted for every build, but they are a annual to any printer you put them in.
Most of the believability presented aloft about threaded rod are absolutely aloft in allegory to leadscrews. Leadscrews are fabricated of able abundant abstracts to activity accedence and bend and can be acclimated in astriction or compression (within reasonable limits), are affirmed to be beeline (if handled appropriately and advancing from a acclaimed supplier), are smooth, and all-embracing are brash to accumulate from binding.
As an other bonus, motion on leadscrews is aswell about quieter than on threaded rod. It's annual acquainted that if active for the z-axis motion backfire about isn't an affair because of the force of force acting on the z-carriage and the actuality that all movements are in one direction. This does annual from force though, which this aggregation assuredly took into consideration.
In cases breadth you're assuming fast z-movements (such as biking lifts, "dynamic z," or if appliance leadscrews to drive a basin bot), don't accept the annual of gravity, or if employing leadscrews for accumbent movements, an anti-backlash nut is a amazing benefit, both to babble abridgement and accuracy. Din 975 - http://www.din975.net/