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The fork in my OBS broke across the pivot cup in typical fashion- from east to west, right across the center of the cup.

I ordered a new one from subarupartsandaccessories.com, and it was $40.

 

This price figure has me contemplating welding up the old one to keep as a spare. Anyone had any success running a welded one? I very much understand the implications of a shattered clutch fork imposing itself upon an unreceptive rotating clutch assembly, I'm just speculating. I'm a good welder, and I know better ones. It's early here, fog of morning may be impeding rational thought.

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Edited by joomanburning
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Weld it. You could add in some reinforcement welds. You can also heat treat it afterwards to help prevent it from cracking again.

 

They crack because they're made of a very high carbon steel so the fork won't flex when it's under pressure. Problem is high carbon steel is more brittle, and over time it can become work hardened which makes it even more brittle. Brittle metal cracks.

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Forester fork was $20, might you have been able to use that? Seems like they should be interchangeable.

 

How often do these things break?

 

I'd be willing to bet that this was the original fork @ 200k. It is good steel, If I bounce it off the tile in the stove room, I could tune the guitars to it. :headbang:

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