Film roller/advancer for ToneCarrier

This roller/advance system is designed to be used with the ToneCarrier. Keeps your film tidy while feeding it through the carrier and offers a bit finer control for advancing. The rollers have slots facing in each direction so the same model can be used on either side of the carrier. They include a tab where you can fix the film in place using a paperclip but I found that most of the time the puncture holes left by the film clips used for hanging the film for drying are enough to keep the film from slipping out. The assembly is pretty self explanatory - the knobs are inserted through the holes on the holder, the spacer is placed over the knob pin to allow better spacing and less constricted movement, the rollers are glued onto the knob pins. The whole assembly is then glued to the side of the carrier. Cover the rollers in some sort of tape which won't scratch the film, I found matte gaffer tape to be a good solution.