Structural inside walls for 3D printed bird house and parts for air flow

You add the mesh inside before assembly of bird house.

In this remix I added structural inside part for that original small bird house because birds need some kind of structure inside the bird house for climbing. Someone puts sand paper inside but this is my 3D printed solution :-) Original bird house is amazing. Just print it with PETG because of UV and weather.

Middle body has holes for ventilation, so water will not condensate inside so much.

I changed the way how you can hook it on the tree.