Rafter plan

This is my set up at the work bench to determine the curve for the roof rafters. I don't have a substitute for the ridge of the roof but the center line should give a 10:10 angle of slope just at the apex. There are two little stubs to represent the purlins with their 4:10 rebates to house the rafters. Obviously the other side is just a mirror of this, so all parts are the same. Lots of bandsawing. I wanted to design the curve to ensure that I could cut the rafters from lengths of 2x4 without too much wastage. Each rafter will also have a little birds mouth type cut at the end to house an edging board, the whole lot will be clad in either two layers of boards or equivalent thickness of material. There is a simple scarf joint where the two sections cross the upper purlin.
There are two more beam constructions like this, but the upper short beams on the other two will be a lot simpler. I didn't have a square piece for the center, so I made a wider item into the curvy shape here. I will carve into that with the sander and whatnot, so it will be an item of interest for those who look up as they pass under the gateway roof.
I used the green masking tape on the rafter to give a clean line for my eye as there were a lot of pen scribbles from unsatisfactory lines. The tape now marks these as the originals that I can copy on to all the others. 22 of each should be in the bag before the last week of the month..