prototype circuit on boards with optical rail mounted in front. 3d printed sliders with set-screws on a section of 2020 aluminum extrusion

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1. teddy (tedyapo@fosstodon.org)'s status on Sunday, 12-Jan-2025 06:04:23 JST teddy

   in reply to

   in front, there's an optical rail made from 2020 extrusion and 3D printed parts. the fan isn't needed for testing this 5mm LED, obvs, but it comes in handy with the bigger ones. a black acrylic cover slips over the rail in use to block ambient light