Custom Cat Door

I purchased a cat door a while back, and it was garbage. It only had a front and back plate, while not having any type of spacer between the two sides of the door. As most modern interior doors are hollow here in the US of A, there is just a giant gap where the door is wide open. then, I remembered I have CAD and a 3D printer….. I give you, my cat door. It prints in two parts, and, includes alignment pins to help with, well……. alignment. I recommend using some super glue during installation. Als