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

  • Miniblind Roller Repair

    The rod along the left side of our miniblinds turns a shaft spanning the length of the housing which pulls-and-releases three pairs of cords tilting the blades, with one roller for each pair. The cords loop over, pass under, and are secured to a tab on the roller with metal ferrules, thusly:

    Miniblind roller - intact
    Miniblind roller – intact

    One day, the middle section of all the blades on one miniblind stopped tilting, prompting this discovery:

    Miniblind roller - broken tab
    Miniblind roller – broken tab

    The correct solution is, of course, to replace the entire miniblind, but our 1955 window frames don’t match up well with contemporary miniblind hardware and I was unwilling to reinvent that particular wheel for this occasion.

    So I laid the cords in place, put the broken tab atop them, and held the mess together with a strip of the obligatory Kapton tape:

    Miniblind roller - repositioned tab
    Miniblind roller – repositioned tab

    Easing some epoxy under the tab and soaking the cords atop the tape held everything together in approximately the original layout:

    Miniblind roller - epoxy backfill
    Miniblind roller – epoxy backfill

    Two days after I reinstalled the miniblind, a second roller broke and was restored by a similar treatment. While I had the thing on the bench clamped in the bench vise, I preemptively slobbered epoxy on the intact roller in the hope of reinforcing it.

    So far, so good!