The body and cover for the flow sensor are done.  

You can use either the BMP280 or BMP388 for any sensor position now.  Both footprints are on the board.

The recess in the cover is to house the optional 128x32 OLED.

https://github.com/Arcus-3d/cosv/blob/master/hardware/rendered/FFF/flow_sensor_for_pcb.stl

https://github.com/Arcus-3d/cosv/blob/master/hardware/rendered/FFF/flow_sensor_cover.stl