Hi all,
for those of you experimenting with duorotor flying wings, like Caipirinha, VTOL Caipiroshka, Swift and similar ones with size 800-1200mm wing span, here is a 3D model for 3D-printing. The distance between the mounting holes is 24mm, there is enough space inside for 30A ESCs and part of the air stream is directed for cooling them.
Have fun!
Ivan