Parametric Micro 105 Quadcopter Top

All credit to punkkills, you'll want to get some STLs from [their Thing](http://www.thingiverse.com/thing:1221911) before using this.

I wanted a faster, simpler print of the top than the one originally offered up. I have my own standoffs, no camera, and wanted to be able to print my registration number on the top. You should be able to get the script to slice up any of the other "top" models provided there.

You can customize the text, whether or not to remove the standoffs or hex-pattern infill.

Use at least 3 vertical shells and a low-density honeycomb infill to simulate the original hexagon pattern.

If you set either `hex_layers` or `text_enable` to `0`, you will be able to print a mostly flat first layer, which is not possible with the original STL. This made it much easier for me to print the top with filaments that don't adhere well to my bed and using varying extrusion widths that wouldn't subdivide cleanly into the original hex shapes.

*NOTE:* If you change your l