Pull Copter with grip to glue

prusaprinters

<p>I gifted the original version to a 6 year old boy. He had a lot of fun with it but also a hard time to get it to start.&nbsp;</p><p>He mostly struggled with getting a good grip on the ring, as it is way to big for his hands. So I modeled a new grip. Further the pullring of the key was way to close to the rotor. I redesigned the key so it stays out of the rotor.&nbsp;</p><p>On the version I first tried with him the gear jammed with the key. So I lengthened the part where the key fits in the gear.&nbsp;</p><p>As I hadn't have any M2 I just removed the screw-holes as I glued it anyway. The angle in the picture is for gripping the device with the left hand and the key with the right, rotate before glueing for the other orientation.&nbsp;</p><p>&nbsp;</p><p>Thanks for the initial designing!</p>