Simple quadcopter frame

This is my printed frame for my 400 size quadcopter. At the beginning it was only arms for my old wood frame, but at the end I replace all frame.

With the design You can build two types of frame - H style or longer X style.

For H quad You need:
- arms (2 sets),
- frame beam_H (2),
- frame plate A (1),
- frame plate B (1),
- frame plate C1 (2),
- frame plate C2 (2).
For X quad You need:
- arms (2 sets),
- frame beam_X (2),
- frame plate A (1),
- frame plate B (1),
- frame plate C1 (2),
- frame plate C2 (2).
Additionally You can print:
- cover A and B (glue them together),
- legs (2 sets),
- motor distances (4) - if Your motor needs them (my has long shaft with wide cotter).

I add a Sketchup file if someone want to easily adapt frame for his needs...