March, 2015 meeting

Swarf on my Mouse Mat – John Downie

An intriguing title for what promises to be a talk to remember.

John Downie who is a member of the Sussex Branch of the BHI is a retired university lecturer with a keen interest in the practical use of computers in clockmaking.

John will be describing the research and computer modelling he did in order to help a friend build a functioning model of the famous 14th Century Salisbury Cathedral Clock.

With a desire to be able to manufacture complex items in his workshop John has built his own CNC machine using a scrapped computer controlled PCB drilling machine together with home brewed electronics and software.

Subsequently he has gone on to develop computer models of mechanical regulator clock escapements and using programs such as Algodoo and Rhino 3D and a home brewed mill has gone on to put some of them into practice.

John is not entirely computer based and enjoys working alongside other Sussex based horologists fine tuning his hand skills.

Anyone who was on the visit to the Frodshams workshop will remember how impressive the computer aided design facilities were.

Maybe John will inspire us to see how the computer can be put to good use in our own more humble workshops!!

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