Novelkeys Kailh Big Switch build howto

The Novelkeys Kailh Big Switch is a working MX-style mechanical keyboard switch, but 4x larger in every dimension.

I realised at the weekend that the Big Switch should fit nicely in a simple Lego enclosure. Because an MX-style switch is usually mounted in a 14x14 mm square plate coutout, at 4x larger the Big Switch would need a 56x56 mm mounting hole. Lego aficionados know that studs are arranged on an 8x8 mm grid; this means the Big Switch hole is exactly 7x7 studs. A plan was hatched and a prototype was made.

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