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why is the propeller chassis made from circuit board? Isn't that kind of an expensive and fragile solution?
by IheartApplesDix 14y ago
why is the propeller chassis made from circuit board? Isn't that kind of an expensive and fragile solution?
- TomNomNom 14y agoI assume it's mostly to keep weight down. I imagine it could also make manufacture easier/cheaper; you'd need most of the board for the circuitry anyway, so why spend more money a separate piece for the chassis? Also: I don't know if you've ever tried to break or cut a circuit board but it's pretty tough stuff for its weight too.
- jlgreco 14y agoYeah, worse case you could make an extended wire bumper that protects the top/bottom of the device: http://www.bitcraze.se/2012/10/protective-frame-prototype/ http://www.bitcraze.se/2012/10/protective-frame-prototype/
- ansible 14y agoCircuit boards are fiberglass and copper. They are not too bad as structural components. Especially for something this light. The main issue is that you don't want your board flexing on any regular basis, because that will cause the solder joints to crack. Again, the low mass really helps.
- Florin_Andrei 14y agoCB is actually a pretty tough material. It's a type of fiberglass after all, or a composite material anyway. Very hard to break, speaking from years of working with it. Since you need electric circuits anyway, and a material that's not heavy but sturdy, you could stomp two birds with one stone and use CB instead. It's a pretty popular solution among those who build small quads.