About this 3D model

Hello, Here is a chassis adapter for the flight controller Emax STM32F303 F3 http://www.banggood.com/Emax-STM32F303-F3-Femto-Flight-Controller-with-Integrated-BECBuzzer-PadsVBatPDB-p-1101875.html?rmmds=myorder?p=LD020411878172015024 It is available in 20x20mm in M3 and in 30.5x30.5mm in M3 which includes wiring passages. They can also be printed in Ninja Semiflex see Flex