Description: In this article I review the evolution of my laser cut designs and my learnings around rigidity. The battle continues.
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I've been trying to design a 100% laser cut frame. The goals were ease of build, low cost along with an optimal use of ponoko materials (which is my laser cut supplier). As my designs progressed, I have never been satisfied with the rigidity of the booms/arms of the quads I built. When I held a blackout (carbon fiber) in my hands at the local meetup I knew right away that I needed to find a way to improve rigidity.
My first design had very narrow bamboo arms which were not rigid enough, to correct for the lack of rigidity I played with PIDs on low end KK (low frequency) flight controller board and it flew.