Caddx Turtlet/Turtle 30x30mm inline mount

This is a Caddx Turtlet/Turtle 30x30 pcb mount. It inlines the PCB in the current 30x30mm FCS holes and replaces https://www.thingiverse.com/thing:3025945 for saving height in the frame. The adapter can be used with the standard M3 standoff.