120 film adapter to 116-type camera

Print 2x per cassette, without supports. Attach to 120 film cassette and load into camera. You will also need 1 empty spool with 2 adapters installed on the pickup side. If you had original empty 116 cassette - it is still better to replace with 120 one to avoid any film misalignment.

Optimized to fit snugly into Fomapan 120 film cassettes. If it barely fits/too loose - play with scale or horizontal expansion. If you have radically different cassette - redesign might be needed to fit snugly.