Quad Copter APM with modular system

thingiverse

This is related to my http://www.thingiverse.com/thing:146849 modular system. My last quad crashed, ruining the frame and props, but the electronics were all fine. This quad is based off .5 inch square dowels. The top is based off of my modular system, so the same components will connect, but I modified it to have screw holes that line up with the base. Due to bridging not leaving the flattest surface, I made the square dowel holes in the components taller to prevent needing a lot of cleanup when a part needs to be replaced. The landing gear pieces are very thin, made to break as the weak point, but to be fast to print replacements. They can be placed in the center, like mine in the photos, or on the arms as the screw spacing is the same. My frame only weighs 260 grams as seen in the attached photo. All up comes in at 920 grams w/ a 2200 lipo as flown in the video below. My build is as follows: one Quad Bottom one Quad Base Top four Landing Gear Arms four Quad Arms (motor mounts) one Battery Strap Base Four ST2210 motors Four 8045 props One Qbrain 4x20 ESC APM 2.5+ w/ GPS and power sensor 900Mhz Telemetry Module FrSKY 4 channel CPPM receiver. Maiden flight:http://www.youtube.com/watch?v=7ptw4CZ74e0 I printed 20% infill ABS w/ 3 perimeters in slic3r.