ZiDrohne - tough quad - 100mm Brushless - fpv
Description
I really liked the "Doinker v3" design, but I wanted a slightly bigger quad. I first tried the "100mm Whoop Frame" (https://www.thingiverse.com/thing:2531356) but the problem was that it broke very reasily with a hard landing: the 90° angles of the arms that hold the motors are very fragile. So I took the Doinker v3 and scaled it up to the 100mm Whoop Frame size. I also changed some things to make it even more sturdy and added some minor details (mainly proportions, smoothing, another base to attach the flight controller to etc). To attach the Lipo I designed a simple plate with two slits where a valcro strip can be fed through. There is a top plate that protects the flight controller and lets you strap down the receiver with a zip tie. I am very happy with the result, I still fly with the first version of the frame. The twisted arms that hold the motors are perfect and very stable! They are easy to print and also withstand rough landings! The quad weighs around 176g (with cam and Lipo). I also added a fpv camera holder that is strapped to the quad with a zip tie. It is a bit bigger then the fpv cam to allow to add some rubber shock absorber (I cushened it with some rubber vibration absorber from an old HDD). The cam is held in place by two rubber bands. Some notes for a build of the quad: The ESC, FC, base Plate and top plate are all held together with 4 M2 screws. You will need to add some spacer between the FC and the ESC. The building and soldering is a bit fiddly but it's manageable. The wires from the motors are fed through the slits between the air ducts. In my build I ran the cables to the voltage beeper on the top side of the quad because I added the beeper late. I guess you can also feed it through the base if you consider it from the beginning.
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