Nikon AM-1 Film Casette repair lost closure bolt

Alpsman

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Jan 16, 2012
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Austria
woe is me - the closure bolt on the AM-1 film casette has gone lost . . .

Given the prices being charged for the cassettes, it's worth trying to get them repaired.

DSCN8051 lo.JPG
The cover can be CAREFULLY lifted off using a small screwdriver.
If you bend the lid when removing it, CAREFULLY realign it by lightly hitting it with a small hammer on a piece of wood, lead or aluminum.

So I machined one out of a leftover electrical plug contact
DSCN8052 lo.JPG

The bolt is small
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Very small
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A piece of aluminum with a 2.5mm diameter hole serves as an anvil for riveting.
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There's a small countersink on the front of the bolt, and the bolt is carefully riveted in place with a center punch.
Very carefully.
(There is no picture of the riveting because I needed both hands.)
The cover is replaced, and the knurled edge is carefully hammered down in three or four places using the hammer.
CAREFULLY
After that, the bolt (in the lower pix on the right side) will do its job again, sealing the cassette in the camera as it should.
DSCN8057 lo.JPG

And if any of you ever need a part like this, here's the drawing.
In German and in millimeters ;-)
Nikon AM-1 Rotationsbolzen.jpg
 
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