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Old 09-11-2015, 01:20 PM
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MattT
Reflecting on Refracting

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Join Date: Jul 2011
Posts: 1,219
The tangent arm starts to take shape. Cut out with my Jigsaw and 102mm hole saw. This part of the tangent is being made with two 6mm thick pieces of aluminium with a 1.6mm thick sheet brass sandwiched inbetween....naturally the aluminium will be black and the brass polished, the lot being bolted together on both sides. This took about an hour of cutting.
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