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Balance truing tool improvisation


steve1811uk

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Hi, I think that I got this for a good price £20 only. I had to improvise as it has a bit missing. What do you think? Will the paper clip work? I'm planning on sharpening the end of the clip into a more defined point. Any idea why the tool has two sides, is that for different pivot sizes?

IMG_20210701_123719553_HDR.jpg

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The paperclip will work fine, the original part is only used as a visual reference so no real difference. There are many versions of these, usually one side will have female cones with holes going rather deep in the center of the cone, then they are cross drilled. This allows the tool to hold a balance by the conical portion of the pivot, which is strong, and in the event a pivot does break, it can fall out either on its own or be pushed up to the cross drilled part. The other side will often just be simple female cones, but can also be a different size of the cone/drill/cross drill type. Sometimes they are actually male cones. On yours I don't see any cross drilling, but that shouldn't be an issue.

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39 minutes ago, jdrichard said:

You need to get out your files and cutters and make one that’s exactly like the original.

You are an electrical engineer, not mechanical...BUT...you ARE an engineer...you think like one regardless of the discipline.  I agree...it would be very gratifying to make the replacement part.  I think that is what I would do (also an EE).

Sometimes it is hard to know what is more gratifying...fixing a watch...or making the thing that helps me fix a watch.

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13 hours ago, LittleWatchShop said:

You are an electrical engineer, not mechanical...BUT...you ARE an engineer...you think like one regardless of the discipline.  I agree...it would be very gratifying to make the replacement part.  I think that is what I would do (also an EE).

Sometimes it is hard to know what is more gratifying...fixing a watch...or making the thing that helps me fix a watch.

Making tools is a NO FAIL adventure usually.

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  • 2 years later...
On 1/29/2024 at 6:04 AM, Razz said:

I think you will want to have more than a paper clip if you actually have to adjust your balance.  I recently acquired this one for about $21.50.20240128_2254322.thumb.jpg.c818b503d53bbb4751ede0def37a1abe.jpg20240128_2255052.thumb.jpg.644b9d795fcc2e4ec076ef63c51cf441.jpg20240128_2259262.thumb.jpg.0c91389948eb43f9effe0b948b954589.jpg

Nice tool. Paper clip sharpened to a point has worked very well thanks on a few occasions.

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