This a squirrel feeder. Printed with PetG. The Glass in Front is 2mm thick, bought a cheap photo frame and cut it to size. The max thickness for the glass is 2mm. You Need 4 3mmx16 bolts and 4 nuts the screw the holders on the back of the feeder. I glue-ed the bottom one to prevent the feeder from sliding off. Do not glue the top one or you cant screw it to a post or tree anymore. The Hinges I glued at the back and the roof. 

The Ones I used are from (https://makerworld.com/nl/models/1715065-customizable-hinges-with-conical-interior-knuckles#profileId-1820232)

On plate 4 is a brace to protect the animal against the sharp glass. If you don't use glass, you can leave it.