Toy Quadcopter / Drone - Dual Prop

Thanks to pefozzy for the base model!

The props have been changed to dual prop - same internal hole diameter as the original so the pins can bit fit and glued in the same manner.

The image shows glow in the dark props (kids found it fun).

The attached base is plain - not lettering or shape.

To add a letter use something like Meshmixer (maybe there is a better way to do it, but this is what I found):

1. Import the base model
2. add the letter shape and change it sizes
3. re-mesh the top of surface of the base where the shape goes (select and re-mesh) and the letter/shaper over and over for lots of triangles (as much as your computer will handle)
4. make the base see through with a shader (or letter/shape) and lower it to make an indent.
5. in the object browser (under View) make sure to FIRST select the base and then your letter/shape and the do a boolean difference (set it to as accurate as your computer will handle).
6. Test for any holes with the inspection tool and fix stuff. Export to STL and print.