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By RichardHarris123 · Posted
Hello and welcome from Leeds, England. -
By unpluggedandunwound · Posted
I started to repair watches a couple of months ago and I'm enjoying it a lot and I'm looking forward to improve. -
By nickelsilver · Posted
The bearings on these are a double angle, with both angles contacting at the same time. If things get worn, for example the short steep taper (which takes the axial loads, and will wear faster over time), the long taper will make too much contact and lock up. Regrinding something like this is basically impossible without very special machinery and skills. But- they can be lapped to darn close to like-new condition. I remember one of my teachers in school was an ex-toolmaker, and he had me lapping some of the beat up school lathes using silicone carbide lapping compound. This works on spindles like this where everything is nice hard steel, but it's still a pain cleaning out all the lapping compound with a lingering fear that there will be a lingering lapping effect over time. Years later I found out about Timesaver lapping compound, which if you read up on it appears to possess some truly magical qualities, but the really magic thing about it is it breaks down into a non-abrasive product and doesn't imbed. You can use it on steel as well as softer alloys safely. There are two types, green and yellow cans, the green being for steel-on-steel. If you get it all together and find that it binds a bit, I think it would be totally safe to use some of that product to "bed in" the bearings. -
If it's a gold case I'd strip it down and put in my heated US. If you've not got a Heated US then just try hot water to start with.
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It's an understatement to say that it's an understatement to say that the universe is huge, and that too is an understatement, and so on 😉 Wanting to go to the nearest exoplanet I made this little calculation a few years ago: Nearest Exoplanet (Proxima Centauri b -39 grader celsius) Distance from Earth: 4.22 ly = 39,896,955,919,553 km. Time from earth VASIMR* speed: 25 302 years. Time from Earth passenger jet speed: 5 358 173 years. *Variable Specific Impulse Magnetoplasma Rocket
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