Pressure plate for a 122 to 120 camera?

[Eric Klingberg]

I 3D printed a 6x14 mask and 120 spool adapters for a Kodak 3A, but now I'm trying to figure out a pressure plate. One solution I've seen is just foam display board. I could probably cut up an empty polaroid pack and attach that to something flat. Interested in any quick and easy solutions.

 

[nosmok]

I 3D printed a 6x14 mask and 120 spool adapters for a Kodak 3A, but now I'm trying to figure out a pressure plate. One solution I've seen is just foam display board. I could probably cut up an empty polaroid pack and attach that to something flat. Interested in any quick and easy solutions.

This depends on how much of a hoarder you are, but here's what I did: Some Kodak 116 format cameras have nice big pressure plates in them, larger than 120 width of course. Pull one out of one of those, and put it onto the 122 camera back-- those're aluminum and easy to work with, I just threaded some small steel screws into holes I drilled in the aluminum- used them as thought they were self tapping, since they were so much harder than the Al- to hold the PP on. You adjust the height (and therefor the pressure) by the spacing of the mounting screws.

 

[Eric Klingberg]

This depends on how much of a hoarder you are, but here's what I did: Some Kodak 116 format cameras have nice big pressure plates in them, larger than 120 width of course. Pull one out of one of those, and put it onto the 122 camera back-- those're aluminum and easy to work with, I just threaded some small steel screws into holes I drilled in the aluminum- used them as thought they were self tapping, since they were so much harder than the Al- to hold the PP on. You adjust the height (and therefor the pressure) by the spacing of the mounting screws.

Thanks for the recommendation. I'm an entry-level hoarder, so I do have one but didn't really want to take it apart. I'll try to find an already broken one from my camera club. Did the screws need to be level with the plate?

 

[nosmok]

Thanks for the recommendation. I'm an entry-level hoarder, so I do have one but didn't really want to take it apart. I'll try to find an already broken one from my camera club. Did the screws need to be level with the plate?

Probably helps some, but as the saying goes, "It's not rocket surgery"-- the plate rests on the (modified) film gate, so if there's a slight tilt there's basically nowhere to go anyway. Some very sticky tape helps get the screw positions in the ball park before drilling. The 122 Anscos that I have didn't even have a pressure plate-- they had strips running along the edges of the film, but nowhere else on that huge negative. Whatever you do will probably be better than that.

 

[Eric Klingberg]

Probably helps some, but as the saying goes, "It's not rocket surgery"-- the plate rests on the (modified) film gate, so if there's a slight tilt there's basically nowhere to go anyway. Some very sticky tape helps get the screw positions in the ball park before drilling. The 122 Anscos that I have didn't even have a pressure plate-- they had strips running along the edges of the film, but nowhere else on that huge negative. Whatever you do will probably be better than that.

I secured another Kodak 116 from my camera club, now I'm trying to figure out how to remove the pressure plate. Looks like I need to drill out the rivets to access it?

 

[nosmok]

Yes thats what I did. Mine only had 2 rivets though (Kodak had a LOT of different models back in the day). From the photo, it looks like the PP goes all the way over the supply and takeup rolls. Is this the case? I'd start taking detailed measurements of donor and recipient camera to see what (if anything) you may need to trim... measure twice, cut once and all that.