Loved this design. Right up my alley. I printed it off on a K2 Pro and up-sized the model to a scale of 127.74 in Creality Print. Approximate size is 6"W x 8.5"D x 11.25"H. I didn't want it as a bird house but to use it as a display on the front of my house. My plan is to paint it realistically. To keep it critter free, I needed to create a cover for the upper and lower opening. I created two designs to fill the holes. The upper window will be filled in like stained glass. All the rest of the windows will be covered with clear plastic. Hopefully to add a solar light on the inside. The upper window is 46 mm x 46 mm. The door area is 56 W x 38 H x 4 D (mm). Both will be glued in place. Still not the size for a robins nest. Update: It's now painted. Doors and windows are all filled in. Also printed off clear plastic on a regular printer that looks like curtains for the other windows. Added a cardinal that I also printed on my K2 Pro. Sized it appropriately. Now to find the right solar light to enhance it at night.