3D Printed Geared Propeller System for Micro RC Airplanes

Upgrade your micro RC slow flyer with this highly efficient, fully 3D-printable propeller and gearbox system. Designed specifically for 716 coreless motors running on 1S LiPo batteries, this setup trades inefficient high RPMs for mechanical torque. By utilizing a 4:1 gear reduction (7-tooth pinion, 28-tooth driven gear), this large 100mm propeller takes massive, slow "bites" of air. In testing, it delivered up to 13g of smooth linear thrust while pulling only 0.72A—massively outperforming stand…

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