Posted by duncan webster on 16/04/2020 16:02:33:
However the OP manages to drill his holes, I'd be interested in learning about Robertson's clock. The Wikipedia page has a lot of words but no diagram, so less than easy to understand.
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You might do well to start here, Duncan : **LINK**
https://www.bristol.ac.uk/engineering/news/2019/robertson-clock.html
[quote]
As part of this initiative, Professor Robertson’s original engineering drawings will be made available online for the next generation of horologists. The clock was made by Messrs. Brecknell, Munro and Rogers of Thrissell Street, Bristol, “mechanical, electrical, and tramway engineers”.
[/quote]
MichaelG.