Flex-tube door

This is a way to take the exhaust from the 3D Printer trough a door. I use a 3" (75mm) flex-tube mounted to my P1S and the other end is connected to this model and sends the fumes into my garage. The cap and the flap are there to stop cold from comming trough, when the tube is not connected. You can put some foam in the cap for extra insulation. The flap is connected to the base with a thin piece of copper, that I took from a wire.