Constructing A Byzantine Sundial-Calendar - Part 1 (Making The Cutters)

Hey Folks,

Designed and constructed in 2016-2019 as a companion project to the Antikythera mechanism, this video series is an alternative look at the second oldest geared mechanism from antiquity: The Byzantine (London) Sundial-Calendar.

I designed the project as a sort of 'gateway' project into more complex horological work, especially if you're already comfortable with model engineering, and maybe feel like tackling something a little unusual. I've seen some outstanding builds of this project over the intervening years and would love to see more. So, if you'd like to build along with the series and help me make these videos, the plans for the project are available as part of the $1 tier on Patreon, find out more here:   / about  

Those of you who are Patrons will notice that for this YouTube release of the series I've spruced up the intro card and soundtrack, and also combined a few episodes together to make it all a bit more efficient for the viewer. For those who are seeing this narrated build series for the first time, do please enjoy!

Cheers.
Chris.

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A very special thank you to Patrons:

Sinking Valley Woodworks
Glenn Trewitt
Christopher Warnock
Guy Loughridge
Charles Frodsham & Co.
Peter John Richardson
Adam Slagle
Robin Haerens
Mitchell Collins
L'Enfant Watch Company
C. A. Patrick Voigt
Steven R. Crider
Gary Levario
Mark Coburn
Pete Askew
Jeff Armstrong
Ralph McCoy
Jim Popwell
Kaedenn
Bradley Pirtle
PaxAndromeda
Thomas Eriksen
Michael Hardel
Tim Ball
Grant Michener
Jonathan Teegarden
Steve Hossner
RuKiddin06
John Maksim
RobinP556
Lea Bruder
Armagus
John S Dilsaver
matt mcparland
Daniel Cohen
Larry Pardi
Sean Kuyper
Samuel Irons
Dan Keen
Florian Ragwitz
Matthew Middleton
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References:

Original Artefact:
https://collection.sciencemuseumgroup...

Michael T. Wright (curator): https://en.wikipedia.org/wiki/Michael....

J.V. Field & M.T. Wright, “Gears from the Byzantines: a Portable Sundial with Calendrical Gearing”, Annals of Science, 42 (1985), pp. 87 – 138.

D.R. Hill, “Al-Bīrūnī’s Mechanical Calendar”, Annals of Science, 42 (1985), pp.139 – 163.

J.V. Field, “Some Roman and Byzantine Portable Sundials and the London Sundial-Calendar”, History of Technology, 12 (1990), pp. 103 – 135.

M.T. Wright, “Rational and Irrational Reconstruction: the London Sundial-Calendar and the Early History of Geared Mechanisms”, History of Technology, 12 (1990), pp.65 – 102.


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