GEPRC Mark 4 - 7.5 Inch DeatCat-Geometry arms and stringer
Description
These are custom parts for the GEPRC Mark 4 fpv frame. The arms and stringers should be cut-out from carbon fibber. recommended arm thickness: 6mm recommended stringer thickness: 4mm The reason why I designed these parts is that I had a lot of vibrations with the original arms and 2806.5 motors. I assume that these motors are too powerful for the 5mm original 7 inch arms. That's why I increased the thickness by 1mm and switched to a death-cat geometry in order to fit also 7.5 inch props. If you are looking for even more rigidity chose the linked front and rear arms. Deep vibration analysis of the GEPRC Mark 4 frame: https://www.youtube.com/watch?v=oc2BNNXInew&t=789s&ab_channel=ChrisRosser https://www.youtube.com/watch?v=jKT4hk0L2Tc&t=24s&ab_channel=ChrisRosser
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