Summary

The Blade QX200 is pretty awesome little quad rotor. With the new firmware you get full 3D flight modes!

Here's a video of a short flight:
https://www.youtube.com/watch?v=rwTvUjisQms

Instructions

Printed mine at .2mm layer height with a 40% infill for a compromise between strength and weight.

The legs can be tricky if your printer doesn't like overhangs - I'd recommend a bit of support for the legs.

You'll need several M3 sized screws and lock nuts to fasten the arms and legs to the body.

4 x 30mm M3 screws for top case part
4 x 1" standoffs (big enough for M3 to run through but not too big!
8 x 15mm M3 screws for Arms and Legs
4 x 10mm M3 to secure Arms a bit more

Print:
4 x arm.stl
1 x body.stl
1 x top-caseing.stl
1 x leg-front-left.stl
1 x leg-front-right.stl
1 x leg-back-left.stl
1 x leg-back-right.stl

Mount the QX 200 hardware using the M2 size silver screws you removed from the original body (they're pretty small). Make sure the gyro is free to sit cushioned without any friction from the main control board supports. It does not like vibration.

Printable Quad Rotor Frame for Blade QX200