High power propeller launcher

thingiverse

This is a propeller launcher with a gearbox ratio 1:4, that can produce high RPM on the propeller and it can fly on a huge distance. Detailed instructions could be found here: https://www.instructables.com/id/High-Power-Propeller-Launcher/ This thing has 2 upgrades: Performance upgrade - https://www.thingiverse.com/thing:3822309 LED upgrade for dark time of the day - https://www.thingiverse.com/thing:3836667 To get this done, you'll need: 8 x 693ZZ bearings, you can buy them e.g. here on AliExpress 2 x M3x45 screws 2 x M3x25 screws 2 x M3x12 screws 1 x M3*14 screw 1 x M3x8 screw 8 x M3x2 nuts 2 x M3 locking nuts 1 x M3 shim ≈ 75 cm of the fishing line with 0,8-1mm diameter 2 x mid sized rubber bands 1 x piece of the filament ≈3cm 1 x shim (with 12mm inner diameter and 16 for the outer) that made of sheet material, e.g. PVC (aluminum works better) 1 x drop of the Super glue Some of silicone lubricant (if you decide to use plastic shim on the starter gear, as I) 3D printer with PLA filament Flat file, pliers, screw driver, to assemble all of these and remove the supports