[time-nuts] Re: Odd Request: WTB Lathe.

[Dan Kemppainen]

Hi,

Perhaps my post was misleading. The pendulum quality isn't particularly 
tied to the machine accuracy. AFIK, the material selection and heat 
treatment (and many other things) are much more important than 
dimensional accuracy for a pendulum itself. Any pendulum should have 
adjustments to correct for absolute errors resulting from minor 
tolerance issues in the individual parts. Honestly, a pendulum is a very 
interesting device, with many many aspects to consider. (And, I'm no 
expert...)

The problem is really that my current lathe is worn out. The pendulum 
project just exposed another issue with the machine, and that has become 
the proverbial 'last straw' in a whole pile of straws. The tool room 
style lathe has been on the wish list for a while, and isn't really 
required for the pendulum itself.

If you have particular questions, I'd be happy to chat off list.

Dan


On 1/13/2022 3:30 AM, time-nuts-request at lists.febo.com wrote:
> I know your request was a bit off topic,  but it has me intrigued.
> 
> Is the need for a higher end lathe related to improving accuracy on your
> "pendulum project"?
> 
> I've always been intrigued by the timekeeping accuracy of a pendulum.   It
> seems like there are so many things that could affect its accuracy that it
> should never work.   Yet it does, at a far better accuracy than I would
> expect.
> 
> So I'm curious what you're working on.