This project is unfinished yet, i'll try to make it ready next weekend. Frame size is 6x12 cm, inner elements are made from 3mm plywood in 2 layers (top and bottom guides) and 4 mm threated rods. I'm going to install two alumunium rods shown at pics #2 close to spools to keep film tightly around cylinder. There is also some mask element required installed close to two threated rods. Holes in top guides will be larger (camera is only temporarily assembled to check advancing). Good news- no problems with film advancing.
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