Wind Up Propeller Launcher

Wind Up Propeller Launcher:New Update! Chanelog at the bottomShort Action: Youtube I came up with the idea, because of my youngest couldn't start the rack&pinion launcher.With the wind up model i can help him to start the propeller. All Parts are printable, no need for other tools or screws and no glue is needed for assembly.Simple press fit the parts together and have fun. I was very impressed that one single rotation lift the propeller that height.Some features:Wind-up toy. Only one revolution is required to reach a flying height of 3mA simple button on the bottom release the propeller. You can also drop the whole thing on the table or floor to start the propeller.All Parts are printable, no need for other tools or screws and no glue is needed for assembly.I added a “Phillips cross slot” on the shaft, which is compatible to my “Kids Workspace" Philipps Screwdriver. With this, the little ones can wind-up themselvesThe propellers are basically the ones from Brent Peterson Toroidal Laun