One more piece of the puzzle in place. Like the corresponding area on the other side, I had to just let this stew until my subconscious gave me the answer. A couple weeks ago, I woke up knowing just what I needed to do.
The two complications: First, the anchoring points are not parallel to each other. Second, because of my insect screen,I needed some space (about an inch) for the screen to function properly, the whole assembly had to be easily removable so I could remove/install the screen, and there could be no horizontal support in th3 middle.
After MrNomer provided me a rivnut at the forward end, I gathered scrap from the shop and started mocking up. Five layers of 1/2" ply plus an angled one brought me parallel to the opening 1.25" out.
I used Baltic Birch for the span and splurged on a piece of 1/2" poplar from Lowe’s for the curved section so I wouldn’t have any grain to mess with as I sanded-and sanded-and sanded—did I mention a lot of sanding? The result was worth it.
The other end is supported by a strange-shaped contraption that I forgot to take a photo of.
I supported the middle with an L-bracket screwed into the 1” wooden joist which is attached to the ceiling beam.
The final result:
The final touch is a drying rack which has already proven immensely useful. It can hold a lot of weight and was the driving force for making sure the whole assembly is sturdy.
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