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This is an arm protection & motors softmount for the AstroX5 JohnnyFPV edition, which fits perfectly the arm and save it from destroying crash after crash, so you keep your arms new !
I designed it to be very light, so it's about 1,5gr !
Print in TPU, 0,2 and 60-80% infill !
Edit 05/10/18 : Final version uploaded with better measurement.