machinists/metal workers: how would you make this ZB part?

Instruments, mechanical issues, copedents, techniques, etc.

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Matt Sutton
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Joined: 4 Oct 2010 8:28 am
Location: New York, USA

machinists/metal workers: how would you make this ZB part?

Post by Matt Sutton »

I've got a new knee lever on the way, and want to finally fully populate the C6 copedant, so I'm gonna need several of these. It's a very early ZB; these do what the spoke-end at the changer does on the later design.

It looks like its just 1/8" rods stacked. Would I be able to braze something like this with a MAP torch? I've done a little welding in the past, but don't have access to a shop or the gear right now. All tips welcomed.
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Eric Dahlhoff
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Joined: 25 Jan 2010 1:04 pm
Location: Point Arena, California

ZB rods

Post by Eric Dahlhoff »

Some of the later ones also had a spoke attached like this one from #0669...

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The ones I've had appeared to be brazed on with silver solder. I've made a couple using silver solder and a propane torch - didn't even need MAP.
"To live outside the law you must be honest." (Bob Dylan)
Matt Sutton
Posts: 34
Joined: 4 Oct 2010 8:28 am
Location: New York, USA

Post by Matt Sutton »

Thanks Eric!
I've said this before, but watching your work on ZBs has taught me a lot about how to deal with my own. I'm very grateful for all the documentation you've posted to the forum.
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Eric Dahlhoff
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Joined: 25 Jan 2010 1:04 pm
Location: Point Arena, California

Post by Eric Dahlhoff »

Matt, glad I can help keep them old ZB's running :)
"To live outside the law you must be honest." (Bob Dylan)
Bobby D. Jones
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Location: West Virginia, USA

Post by Bobby D. Jones »

From the picture it looks like the filler (Short middle piece is actually folded and formed with the short curved piece. That would make it easier to hold just 2 pieces together instead of 3 separate pieces and keeping them aligned.

There is a silver solder,(I used to get it from the local commercial refrigerator/Freezer tech.) that worked great with a MAPP torch and very strong. It was like a sheet cut into about 1/8 inch wide strips. It actually had some silver in it and they based the price off the silver market.
Matt Sutton
Posts: 34
Joined: 4 Oct 2010 8:28 am
Location: New York, USA

Post by Matt Sutton »

Thanks Bobby, great tip. I'm gonna play around with some magnets to hold things in place for the process.
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