The other part of the project that I was working on today was the constructure of the Shutter frame. Same routine as with the dome base was to cut out 13 plywood arcs with an outside radius of 1258mm. Lay them out and align with a tangent arm.
Was thinking of constructing the ring on the pavement but with the treat of rain I move to the garage which was my original plan. The good thing with my garage it that I was able to use the expansion joints in the concrete to centre the tangent arm right where they cross at 90 degrees.
I only had to laminate two layers of plywood together, so the process was quite quick and having done it multiply time it get easier with the trimming, gluing and screwing.
Final task tomorrow is to divide the ring into two semi-circle than hopefully put some studs in to form the opening and attach it to the dome base ring. This will depend on the painting.
Cheers
P.S. The Shutter opening was scaled up to 690mm due to the fact I have scaled up the diameter of the dome from 2.3m to 2.6m
Also here is the link I used to get the right radius for the shutter frame.
https://ambrbit.com/TrigoCalc/Sphere...ereCap.htm#cap