This case specifically designed for RP2040 module from WeAct Studio.
This is bit snug fit (extra 0.30 mm length and width applied to original datasheet specifications) and before printing make sure that z-seam is aligned properly. Else blobs might come in a way. Use of a sand paper at some place might help. For me I had no issue.
Check out the images for the PCB dimension and case dimensions.
Print Guide:
Material: PLA, PLA+, PETG (I used Overture RED) or any other works
Layer Height: 0.2 to 0.24
The author marked this model as their own original creation.