The third version of the prototype case has been printed:

• Holes for stemma connectors no longer exposed on the bottom half (still visible up top due to lack of space
• Reduced exposed space around the UV sensor
• Reduced exposed space around the OLED
• Adjusted (but not entirely fixed) screw holes

Probably enough 3D printing for now, next up - I'll try to get it battery powered and maybe some code improvements.