This model was designed to help reduce instances of purge waste being flung back into the print area. The models I remixed had two issues in my experience.

The original model is push fit and extremely thin in areas and not really optimized for printing. The second remix solved the push fit issue by adding in snap fits (which I copied exactly). Snaps fits worked great, but the model was still very thin and weak in several areas, especially where support removal is required. Geometry wasn't very optimized for printing, seemingly unnecessary super steep overhangs, and seems like the overhangs for the mounting snap fit tabs could be printed without support in a different orientation, but you're kind of forced to print in a single orientation due to how thin the middle of the flap is. Broke one then printed another. So i designed this remix with the copied snap fits and a stronger and more optimized design for printing.

Print standing tall as pictured. Standard 0.2mm layer height print profile in Bambu Studio. I used a ~10mm brim just to be safe. If your print quality is not great, double check your minimum layer time and cooling settings as this is a small, thin, and tall part so your layers may not be getting enough time to cool. I used 5 seconds min layer time I believe. I'd recommend a material with higher heat resistance than PLA such as PETG or I used ASA. Higher chamber temps could negatively affect PLA.

Fusion 360 source and .STEP files included.