
lay one side in front of you score lines up.

it also allows the bellows to fold up in a more compact space) the sheet was 22x28 inches so i started from the long edge and scored in 11 inches worth of lines cut it away then divided the sheet into 4 equal bits(7x11).

Since this is just a demo bellows i elected to make a simple square one but if you want you can make a tapered one for that old fashioned look(or to reduce the size of the front lensboard which is why alot of old cameras look that way.
