Case for F4BY v2.1.5 flight controller. Usable, but still have issue with disposable covers for connectors. They work ok when disposed. But it has no room for plugs kept inside of the case with wire harness passed through cut in disposable covers.

Controller information (in Russian) http://forum.apmcopter.ru/threads/kontroller-f4by-2-x-x.100/

UPDATE 2017-04-02: New case top implemented as f4by-case-top-v2.stl. Minimal cuts to minimize moisture issues.

UPDATE 2017-04-14: New v3 of the case with thin disposable connector covers instead of dashed covers.