RC Helicopter 450 Main gear (TREX 450, HK 450, Tartot 450 etc.)

thingiverse

Properties: Z = 150, step = 0.5mm Fully functional part Complete part: HK450_main_gear_complete.stl 2 parts: HK450_main_gear.stl + HK450_main_gear_axis.stl (This way you only have to replace the gear when a tooth is broken) Printer setup: Layer height: 0.15mm Print speed: 15 mm/s Printed in PLA and flight tested, an ABS print will produce a stronger part for this application. Update: It's been realized that PLA is ideal for preventing damage from helicopter crashes (recently several have occurred). PLA main gears serve as a mechanical fuse better than standard gears (ABS), quickly breaking apart teeth during a crash to avoid damaging other parts of the rotor