250 quadcopter frame - one piece (OpenSCAD)

Unfinished 250 Quadcopter design, designed with OpenSCAD, with good math behind it so you can change a lot simply by modifying the variables at the top.

It is still a work in progress, v13, the first (and at time of writing only) version I printed still has the following problems for me:

• sonar holes too tight
• motor holes a hint too tight (but manageable)
• motor cable holes far to big (diamater vs radius..?) [but maybe I'll leave them big like that for cooling purposes]
• motor protection too tight
• micro sd card slot too small
• fpv cam thread mount too far up
• motor holes mirrored! (for 2 of the 4 arms) [already corrected in v14]