The Smell of Molten Projects in the Morning

Ed Nisley's Blog: Shop notes, electronics, firmware, machinery, 3D printing, laser cuttery, and curiosities. Contents: 100% human thinking, 0% AI slop.

The New Hotness

  • Bike Helmet Earbud Replacement

    A bag arrived from halfway around the planet, bearing five sets of cheap earbuds. There was no way to tell from the eBay description, but they’re vented on the side:

    Cheap earbud - side vent detail
    Cheap earbud – side vent detail

    And also to the rear, down inside those deep slots below the chromed plastic cover:

    Cheap earbud - back openings
    Cheap earbud – back openings

    The raised lettering is a nice touch; the other earbud has a script L.

    The PET braid over the fragile wire should withstand a bit more abuse than usual. The strain relief isn’t anything to cheer, though, consisting of that rectangular channel with the wire loose inside. I figured I’d start minimal and fix whatever crops up; I have nine more earbuds to go.

    The motivation for all this was having the Gorilla Tape peel off the helmet, leaving a hardened mass of glue behind, then snagging the earbud wires. This is the new, somewhat better protected, wiring:

    Bell Helmet - mic-earbud wire - hardened tape adhesive
    Bell Helmet – mic-earbud wire – hardened tape adhesive

    In a triumph of hope over experience, I applied more Gorilla Tape:

    Bell Helmet - re-taped mic-earbud wiring
    Bell Helmet – re-taped mic-earbud wiring

    The helmet may need replacing after another iteration or two.

    My solid modeling hand has become stronger these days, so I should gimmick up a flat-ish wart anchoring the mic boom and all the wiring to the helmet shell.