120 to 118 Film Spool Spacer/Adapter

thingiverse

I made some slight changes to the OP's design to better work with my rolls of 120 HP5, and to fit my particular camera (Kodak No-3A Folding Camera) better. Took the size of the 118 takeup spool, and made the length of spacer 1 + 120 spool length + Spacer/adapter 2 length the same total length for a perfect fit. Fit: This may require a bit of fiddling to fit right, depending on your print tolerances. With an MakerGear M3, both pieces slide onto their respective <i> pins </i> with ease, but your fit may vary slightly while still fitting. Installation: To install a spool of film, I slid the non-pin keyed adapter (referred to as 'cross') onto the top film advance pin. Then I inserted the '+' on the other end into the film spool, inserted the other adapter/spacer into the other end of the film spool, and while pulling the circular pin out and away from the body of the camera, I slid the other end of the film spool in. Fits well, doesn't seem like it wants to slide back out or fall out of the spool. Removal: To take these out of my camera, I need to use a small prying tool of some kind to pull out the circular spool pin at the bottom of the camera until I can slide out the spool. Not a perfect solution, but it just means that the spool is secure. Check out blaskkaffe's original design for the instructions on use with a 120 spool. .STEP files are available should you want to make any edits or tweaks for your own design.