I have a need to be able to close off the air that is coming into the cabin via the openings that I created so that it is forced all of the way through the ducts to the windscreen for demisting. The method achieving for this has been puzzling me for a long time. I have some options for closing off the opening: Hinged Door or flap Hinged butterfly arrangement Rotating disc with an opening in it with the pivot away form the edge of the opening Sliding cover plate with slide rails down each side Then I had some more thoughts that apply to all of these options: Does this shutter go on the inside of outside surface Does the arrangement fit inside or outside of the opening How is the shutter operated (manual or mechanically) What materials to use I thought I had decided on a slider that […]