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.

Author: Ed

  • Please Close The Gate Signs: One Year

    Please Close The Gate Signs: One Year

    They still look pretty good after a year:

    Please Close The Gate - weathered acrylic - 2024-07-20
    Please Close The Gate – weathered acrylic – 2024-07-20

    Which is to say: the orange acrylic hasn’t faded, the black paint’s still in place, and the gates seem to stay closed.

    One might quibble about the missing wire snippet on the lower left corner, but on the whole it doesn’t get much better than that …

  • Breaking Up Is Hard To Watch

    Breaking Up Is Hard To Watch

    These might be aftermarket hood stripes on a not-very-old Mini (or Mini Hatch):

    Must be heartbreaking to watch that happen through the windshield.

    On the other paw, given the Mini’s reliability record, they might be OEM stripes:

    In 2015, Consumer Reports awarded the 2006–2012 Mini Cooper S the title ‘Worst Used Car’, saying that while it was “cute and delightfully entertaining”, the repair frequency was “heartbreaking” because the magazine’s surveyed owners reported problems in the areas of “engine major, engine minor, engine cooling, fuel system, body integrity, and body hardware have issues at an alarming rate”.

    One hopes that puppy had fewer internal problems …

  • Tour Easy: PTT Button Replacement

    Tour Easy: PTT Button Replacement

    After five years and one cleaning, the PTT button on Mary’s Tour Easy became increasingly intermittent, both failing to activate solidly and sticking closed (there being nothing quite like a hot mic during a good hill climb), so it’s time for an autopsy:

    Failed PTT Switch - as extracted
    Failed PTT Switch – as extracted

    The snap dome is much more scarred at the central contact:

    Failed PTT Switch - snap plate
    Failed PTT Switch – snap plate

    That might be a gold flash coating, but it’s pretty well worn away where it hits the central contact:

    Failed PTT Switch - center contact
    Failed PTT Switch – center contact

    Those scratches surely happened during the previous cleaning pass, as I don’t see any way for the dome to create them.

    The corner contact also shows some scuffs, along with a scar where the dome corner pivots:

    Failed PTT Switch - edge contact
    Failed PTT Switch – edge contact

    All in all, though, it worked quite well.

    The replacement switch, also intended for indoor use on a keypad or some such device, pivots around the front edge and may be easier for her fingertip to activate:

    New PTT Switch - installed
    New PTT Switch – installed

    Hot melt glue seems vastly underrated for how wonderful a structural material it is.

    If this one lasts five years, I’ll be perfectly happy.

  • Rail Trail Brush Clearing

    Rail Trail Brush Clearing

    Having an aversion to getting slapped in the face by Blackthorn branches overhanging the Dutchess Rail Trail, I generally give up waiting for anybody else to do the job:

    Brush clearing B - 2024-07-14
    Brush clearing B – 2024-07-14

    They’re not all Blackthorn (Prunus spinosa), but Ailanthus altissima grows like a weed around here and requires heavy cutback:

    Brush clearing C - 2024-07-14
    Brush clearing C – 2024-07-14

    It’s not just small branches:

    Brush clearing A - 2024-07-14
    Brush clearing A – 2024-07-14

    Apparently, there was no law against that …

    Brush clearing E - 2024-07-14
    Brush clearing E – 2024-07-14

    A recent storm dropped many trees across the trail and the maintenance folks deploy bigger saws than I can carry:

    Brush clearing D - 2024-07-14
    Brush clearing D – 2024-07-14

    Three months after we were told they had ordered replacement tiles, I’m beginning to think I must buy some on Amazon and do this job myself, too:

    Overocker ADA - continued disintegration - 2024-07-21
    Overocker ADA – continued disintegration – 2024-07-21

    Maybe it’ll get done when the weather cools …

  • There’s No UnDo Key For Paint

    There’s No UnDo Key For Paint

    Spotted in a parking lot:

    Misnumbered parking spaces
    Misnumbered parking spaces

    At least they caught it before the end of the row.

    Verily, it is written that Computer Science has only two hard problems:

    • Cache invalidation
    • Naming things
    • Off-by-one errors

    I hate it when that happens on my projects …

  • Laser Test Paper: Plant Label Testing

    Laser Test Paper: Plant Label Testing

    After a month outdoors, the (failed) flexible strip labels show signs of wear:

    Laser test paper - 1 month weathering
    Laser test paper – 1 month weathering

    The upper one has a coating of clear rattlecan paint and looks much the better for it. The lower one is bare, but also suffered greatly from being folded and tucked through itself, so it started in worse condition.

    Perhaps the paper will work better when stuck to metal plant label stakes, although I suspect the adhesive sheet will fail first:

    Laser test paper - small plant labels
    Laser test paper – small plant labels

    Those are random names; Mary tells me the proper label format has the Latin nomenclature on the first line.

    They’re now out on the patio for observation.

    For whatever it’s worth, my fascination with this paper boils down to “it’s cheaper than Trolase” for applications not requiring archival quality and duration. If it lasts Long Enough, that’ll be Good Enough.

  • Speaker Re-Foaming

    Speaker Re-Foaming

    Having recently promoted a pair of Radford Tri-Star 90 speakers to the Sewing Room, it was time to make them presentable:

    Radford Tri-Star 90 speakers - taped grill
    Radford Tri-Star 90 speakers – taped grill

    The original foam grill covering had disintegrated and left fossilized adhesive over the metal gridwork. Being not much for historic accuracy, I used double-sided duct tape (the blue barrier film peels off) and stuck some allegedly acoustic foam in place:

    Radford Tri-Star 90 speakers - re-covered
    Radford Tri-Star 90 speakers – re-covered

    The foam is a single sheet wrapped around three sides and, after some whittling, measured 19.5 inches tall and 19.25 inches wide. The width surely depends on how snugly it’s stretched, so allow a bit more and trim to fit.

    Duct tape probably isn’t the right adhesive for the job, but we’ll see how long it lasts. I really did not want to use spray glue and doubted my ability to slobber liquid stickum without oopsing the cones.

    The speakers sounded great back in the day and they definitely sound much better than my deflicted ears can hear now. Mary thinks they’re OK and that’s all that matters.

    Patrick, wherever you are: thanks!