This project was started in November 2008. The goal was to learn something about programming, electronics and control loops. Because I always need a cool project to learn new things, it was clear that something that can fly had to be built.
The project started as a "tricopter-only" project, but as I wanted to build smaller vehicles with more payload capacity, I decided to make some quadrotor, hexacopter and Y6 hexacopter firmwares too. My main interest is to build very small MAVs that fly as good as larger ones (or even better) and that can be controlled by wireless video link. I also experimented with autonomous flight in GPS-denied areas (video), and with GPS assisted autonomous hover (video). It would be cool to add more features to this project but I am pretty busy with my PhD research. But maybe one day I could combine my scientific interests with my hobby projects...
-- William

Contact: Shrediquette @ g m x . d e --- All content published under CC Attribution-Noncommercial-Share Alike 3.0 Germany

Shrediquette MM4

I have sinned...: I am current building my first quadrotor/ quadrocopter. This thing is meant to be ugly and robust. The idea is to take it with me when I am travelling to Cameroon/ Africa this winter. I'd like to have something small to make aerial FPV videos in HD, and something robust that can be repaired easily. I will use the same electronics as in the DLXm, the changes in the source code will be pretty easy I think. Here are my weight calculations (pretty heavy thing, but it should fly...):

Shrediquette
MM4		 Weight [g]
Frame 63
ESCs 24
Motors 104
Receiver 12
Lipo 70
PCB 10
IMUcube 10
GoPro + AV 110
Total 403
Weight per motor 100.75
Current per motor [A] 1.46
Total current [A] 5.83
Flight time [s] 6.69
Thrust to lift [-] 2.58





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