Filament (1.75 mm) end sensor microswitch

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!! Work In Progress !! - not tested with 3d printer. tjb1 wrote in comment: "You may have an issue with the filament wearing a groove into the button over time causing inconsistent readings." I think that's true.

Must redesign enclosure to use microswitch with simple metal tab or with roller tab.

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This is an enclosure for microswitch. It provides path for 1,75 filament. Microswitch opens when