35mm Film Trimming Jig
by babblefish · via Thingiverse
| Format | STL |
| Category | Tools |
| License | CC BY-SA |
| Triangles | 12.5k |
| Uploaded | Mar 10, 2026 |
⬇ 10 downloads
❤ 2 likes
👁 49 views
Description
Many early 35mm film cameras were bottom loading (bottom feeding?), known as Barnack style cameras, named after Oscar Barnack the original designer. The most famous of these cameras is Leica, though many other companies such as Canon made them too. The film is loaded into the camera via the bottom, after removing a metal plate. The caveat to this is that the film leader needs to be trimmed to about half it's width for about 100mm (4"). The reason for this is to minimize damaging the shutter curtain when the film is loaded into the camera body. This jig (a remix of https://www.thingiverse.com/thing:1951048 ) helps make this job easier. Just pull out the film from it's canister to a length of about 100mm (4"), place it on the jig side that has the locating pins being careful to place the film's sprocket holes over the pins, close the jig then trim the film following the contour of the jig using a sharp knife, such as a #11 hobby knife. The prototype was printed on a Kingroon KP3S using PLA Plus filament. Layer height: 0.16 Supports: None
AI Analysis: This is a yellow plastic tool designed for trimming 35mm film. It helps photographers precisely cut film strips to the correct length for processing or mounting. The hinge mechanism allows for adjustable positioning to ensure accurate cuts.
Originally published on Thingiverse