Is this type of part for Agfa Ansco 8x10 still available?

[jon koss]

I bought an Agfa Ansco 8x10 as a pile of twigs a few years back just because I could not bear to see it go into the trash. After letting it sit I started to wonder if it was all there. It has actually gone back together and now needs only a bellows (I am trying to summon the courage to attack it) and the little 1.125 inch toothed stop on the front standard. The stop mates with the pinion gear on the rise/fall control shaft and locks the front standard into position as needed. Does anyone have an idea of who might have this type of obscure part? Thanks in advance.

Jon

 

[AgX]

DIY

-) With a fine rotary grinding blade and a sturdy hand one should be able to cut the teeth oneself out of a piece of steel or brass.

-) There are specials thread-files (not rotating taps) made to cut small dents at male threads, thus making the thread usable again. They are rectangular and hold 8 different tooth patterns to fit respective threads.
I guess one pattern might sufficiently fit your pinion gear.

In case, cut a piece of brass to size, fix it in a vise, with a piece of flat metal with rounded edges as a stop to one side. File the pattern into your piece of brass.



Otherwise any (fine-) mechanical workshop should have tools to cut sprockets.

Your pinion teeth hardly will match current industry standard anyway.

 

[John Koehrer]

If you're talking about the six groove on the bottom of the plate, I'd agree with AGX about just making a new brass or aluminum plate. The one in the picture looks like aluminum, somewhere around 1/8" thick. Even if you're forced to go with 3 or 4 feet it's not much $$$
Inexpensive material available from a hobby shop/big box store and not very high tolerances needed.
Since it's only a stop I'd think the shape of the teeth, (looks like six?) isn't all that important as long as the pinion engages. Would straight grooves even work? If the bottom is curved a bit, that's what half round files are for

 

[jon koss]

As always, good advice from APUGers. I roughed up a replacement using the original as a guide. A quick test indicates that I am close enough for the purpose at hand. I will screw it into place over the weekend and test functionality.

J

 

[jon koss]

Came out perfect! Rise and fall now under control. Bellows are last remaining hurdle.

 

[AgX]

Looks perfect!

What tools did you use?

 

[jon koss]

The mighty Dremel plus a couple of files and some emery cloth

J

Looks perfect!

What tools did you use?

 

[AgX]

I guess you use that gun to shoot holes...

 

[jon koss]

The basement can be a dangerous place but thankfully I have not had to shoot any holes, although I am pretty sure I heard one trying to kick in the door one dark and stormy night....