I'm trying to build the pattern for a new bellows for my 8x10 Conley. I've got the old bellows ripped apart, but of course accurately measuring dimensions is a bit tricky on old faded & stretched/deformed cloth with thick folds.
I'm trying to figure how to manage the different "drops" in the folds for the two different dimensions since the front lens board is a rectangle. The top of the front standard is a bit over 6" wide (I have the exact dimension at home), and the side is 5 and a bit tall. Since the back is square, this implies the different bellows surfaces have to "fall" at different rates - ie, the rise vs. fall segments have to be different lengths on the sides of the bellows vs. the top/bottom of the bellows. But obviously this wouldn't allow the bellows to fold, as the pleats have to align around all four sides of the bellows. How do you handle this?
I think figuring out *how* to build the bellows is probably 10x as hard as actually making the bellows itself. I have the old cardboard ribs which will save a lot of labour, but I just can't quite figure how to draw the pattern on my new cloth. All the descriptions I've found online have either been square bellows (the majority) or tapered bellows with symmetrical, square fronts. Nothing dealing with the complexity of a rectangular lens board.
Thus far this has taken me months longer than I anticipated, just because it's become a lot of hassle just to figure out how to pattern the thing.