Broken barrel arbor.
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Could you perhaps tap it and insert a screw to get some grip? The risk in that, is that you could be expanding the broken off piece, wedging it tighter in the cannon pinion. Have you considered closing the open ended cannon pinion with a bit of solder, or is that cheating 😉
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The wheel is made of steel and is ok. The top part of the post is not in contact with the wheel and is ok as well. Just one side of the post is worn. The wheel has been gradually eating up the post, creating more and more play between the wheel and the "not worn" side of the post. That's the play you see. Thanks for the advice on the collar. The intermediate wheel is getting more and more "out of line" by the wear on the post, screwing up the meshing indeed. I already found a replacement minute wheel, but need to fix that post otherwise it will be chewed up again very fast.. That, or the fact that this watch was worn every day for 50 years without getting any service... 🙂 i agree that the cannon pinion is probably what caused the wear on the post and the minute wheel. Now finding a way to fix this.. Getting a replacement main plate is an option, but only as a last resort. I would prefer to fix this, if not only for the learning experience..
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I will have to find time to watch all of this. 5min in and I am floored by the automated milling and the "ten plates at once damaskeening rig"
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By Latetothegame · Posted
Here’s a couple pics showing how rough the case and crystal were. -
By HectorLooi · Posted
No. Just the opposite. Cannon pinion not pressed all the way down, so the pinion leaves were just glancing off the teeth of the minute wheel.
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