1/12 scale working replica

Here is my latest interactive exhibit for the Spark Museum. This is a 1/12 scale working model of a Chappe Telegraph, standing about 3 feet tall. These were installed throughout Europe in the late 18th & early 19th century and were used by Napoleon in his conquests. They used no electricity, instead, large semaphore arms were manipulated with brass cables to form messages. A message could be sent from Paris to Milan in as little as six hours.

The entire tower structure, window/door frames, & gears were all cut on the Glowforge. The mechanism is operated with servo motors controlled by an Arduino.



Here are a couple of videos of the telegraph:

Telegraph video overview

Chappe Telegraph model operating

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It reminds me of the mechanical semaphores used on the British rail network. No idea if they are related, but rail is a major public transport system in the UK.

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Very nice! I want to visit the Spark Museum now that you have introduced me to it.

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What fun! I was just listening to a podcast that mentioned these yesterday and had a hard time visualising what they were talking about. Thanks for the elucidation :slight_smile:

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Very cool.

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This is fantastic! I read the Terry Pratchett books books that talk about towers like these, but could never picture what he meant. It is so cool that you made a working model!

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Pretty neat. Reminds me of the towers the Romans built along Hadrian’s Wall. They stationed signalers every mike to pass messages between forts in the wall.

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Wowwww. Not only a really cool piece of history but an amazing model! This is wonderful.

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This would be super awesome even if it wasn’t interactive, it’s a brilliant piece.

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Well I have to admit I have never heard of these. So I thank you for the introduction and education. and the working model is just great.

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Very nice! Supercool!

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Interesting. Learn something new every day

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Wow, that is a lovely piece! And thanks for the mini history lessen, I had never heard of them before.

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I totally agree!

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