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Synchronome Clock build

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gerritv:
I was given a frame casting for this clock in early 2022. It was cast in the 1960's by members of TSME in Toronto.

Casting was a bit twisty so it was mounted to MDF with spacers, and then best guesses made for milling and drilling the various holes. I used an article by Eliot Isaacs from the BHJ but later on was given the matching drawings for the casting (more or less matching).
I made all of the threaded hardware, using BA taps, dies and my Rocketronics ELS where possible. Everything else was cut with a piercing saw and filed to shape. A bit tedious but surprisingly theraputic.
I also made a rope knurl using the traditional tap against a steel blank methond, in this case a 6-32 tap.

Presently waiting for some more red oak and also warm weather to build the case in garage. Drawings for a repeater are also in the works.

Gerrit

uuu:
I'm following this one with interest.  I have a horrible one, where the frame is fabricated rather than cast - and in a dreadful case.  Yours is going to be so much better.

Wilf

wagnmkr:
A very interesting project ... I'll be following as well.

 :cheers:

gerritv:

--- Quote from: uuu on February 12, 2024, 08:35:50 AM ---I'm following this one with interest.  I have a horrible one, where the frame is fabricated rather than cast - and in a dreadful case.  Yours is going to be so much better.

Wilf

--- End quote ---
Way back Synchronome used to sell casting kits, with or without the frame. I imaging the brass castings were rough and difficult to pretty up. Chapter 6 of Electric Clocks and Chimes gives instructions for that build.
ME had a few articles as well using a built frame, e.g. Bladzell 3342 from 1968.
It shouldn't be too difficult to tidy up your clock, nothing is very precise (dimensions are in fractions afterall). Making new srews etc and some finishing should help a lot.

I surprised myself with how fussy I got over the time of the build with maintaining square edges instead of the usual bevels we like on engines. And graining instead of polishing.

Gerrit

Admiral_dk:
How does it work  :thinking:

I'm kind of guessing that the Electromagnets are the power source (for the movement), the Escapement controls time and the switches are controling the electric current to the magnets. So the remotes are controlled by the same switches or ...?

Just currious  ;)

Per        :cheers:

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