Early Bronica S dark slide

[OAPOli]

I'm missing a dark slide for an early Bronica S film back (120 film only), the one with two tabs opposite the handle. Wondering if someone could supply the dimensions so I can try making one?

 

[reddesert]

Here is a photo. The graph paper is metric, 5 mm squares. The dimensions of the main part of the dark slide are about 71mm long side (plus the projecting part that ends at the handle), 62.5 mm wide, and about 0.25 mm thick. It’s stainless steel.

The cutout at the end is ~2 mm deep and mates with the end of the safety curtain that it pushes across. It’s probably ok if it doesn’t mate exactly. (It might even work with no cutout, but YMMV.) They eliminated the safety curtain in later backs. You may have to experiment with the length to have it clear the latch/pin that is used to prevent the dark slide from being withdrawn off camera, or forgo that feature.

 

[OAPOli]

@reddesert that's perfect thank you very much!