Could the official 3D models be uploaded to github, please? Or is that model on thingiverse the official one? I printed it, and it looks like the 3.3 boards fit. Perhaps there is no need for a specific enclosure for 3.3?
The official OpenSprinkler v3 enclosure is designed and owned by SeeedStudio. I will see if it can be posted, but it’s a design meant for injection molding so the enclosure thickness may not be suitable for 3D printing, and it has many small structures which are definitely too small and thin for 3D printing.