This model is not a cartridge shell! I modelled it after being annoyed that my GBA systems had exposed cartridge ports! I haven't printed the model yet, but when I do, i'll post pictures! I took measurements. It should fit normally. FDM printers should print it slowly, any filament would be fine as it's not a structural part, however, holes were left internally and specifically to allow resin to flow out of the empty spaces in the model, so it should be printed as desired at 100% infill