I used the ol’ pencil in a string loop to successfully scribe the 2′ and 4′ arcs which bookend the teardrop. I don’t see a reason yet to cut doors or windows until the size is determined.
My jig saw was quite up to the task of cutting 3/4″ plywood; the blade I had…not so much. A quick trip to the store yielded some beautiful shiney blades, nylon straps and a power belt sander. My cuts were pretty smooth but I’d rather have a well-rounded frame.
My friend, Jerry Lane, dropped by at a most opportune time and helped me set up the side where it will go on the floor. Progress!