This pull copter has all the bells and whistles with a perfect light weight toroidal propeller, and it is fully 3D printed meaning there is no need for and glue, bearings or lubricant it also can fly for up to 11 seconds with a good pull.

Assembly:

1. Put the gear in the base with the twisty bit going out the top and the gear aligning to the hole for the rod
2. Next Screw the securer on the base at the bottom to stop the gear falling out
3. Finally push the rod through the hole and make sure when you pull it the gear spins anti-clockwise.
4. Put the propeller on and enjoy

Note:

• The propeller MUST turn anti-clockwise when you pull the rod
• Don't use it as a weapon (Obviously)
• Print every thing on the normal settings and a 0.2 layer height.
• Print the propellers with a 0.15 layer height and 0% infill.
• I would not recommend the normal propeller, the toroidal one flies twice as high