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.

Category: Oddities

Who’d’a thunk it?

  • Don’t Leave Your Food Unprotected

    This is the season for orb-weaving spiders, one of which laid a great web between a pole and the grass in the front yard. It worked wonderfully well to capture a flying katydid, but wasps got to the victim first:

    Webbed katydid with wasps
    Webbed katydid with wasps

    Maybe a bird took out the spider? We’ll never know, but that katydid won’t go to waste.

    This is a dot-for-dot crop from a handheld shot with the Canon SX230HS, macro setting, plus a dash of unsharp mask and gentle contrast stretching to knock the background down. It’s surprisingly hard to get perfect focus on a wind-blown object; this is the least awful of the group.

  • Spider: Wrong Place, Wrong Time

    I opened the grill cover before lighting it and this critter ran out of the depths:

    Spider in propane grill
    Spider in propane grill

    It eventually crawled up to the gap at the lid, from whence it could bail out over the edge. I fired the barby and, alas, it scuttled in exactly the wrong direction: down its web and directly into the burners.

    Made me feel like crap; spiders are good to have around.

  • Aphids on Milkweed

    We have a fine patch of milkweed in the back yard that attracts & nourishes the Monarch butterfly fleet. One of the plants also attracted a dense aphid population:

    Aphids on milkweed
    Aphids on milkweed

    They’re pretty much featureless orange blobs, although the one on the edge of the leaf at the upper right does show off its legs & antennae:

    Aphids on milkweed - detail
    Aphids on milkweed – detail

    Where are the ladybugs when you need them?

  • Specialty Duct Tape

    Saw this at the local Jo-Anne Fabric and got it on sale:

    Penguin Duck Tape - detail
    Penguin Duck Tape – detail

    Kinda classes up the joint, doesn’t it?

    Penguin Duck Tape - ready for action
    Penguin Duck Tape – ready for action

    Yes, it’s really Duck Tape …

  • Harvestman Colloquium

    For some reason known only to them, one of our kitchen windows attracted a congregation of harvestmen for several mornings in a row:

    Harvestmen on window screen
    Harvestmen on window screen

    A trio appeared on the end of a honeysuckle tendril that’s making its way up a pillar supporting the roof over the patio:

    Harvestmen on honeysuckle
    Harvestmen on honeysuckle

    It certainly appears they’re deep in discussion…

    They’re harmless and they’re outside, so we let them be!

  • USB Wire Color Code: Nobody Will Ever Notice

    A USB cable carries the analog mic and earbud audio for our bike helmets; the connectors are cheap, durable, and separate easily. I cut a 2 m “USB extender” cable (which, according to the USB guidelines, isn’t supposed to exist) near the A male connector, then wire that part to the helmet and the A female part to the GPS+voice board.

    The latest USB extender cable included a surprise:

    USB cable with yellow wire
    USB cable with yellow wire

    According to Wikipedia, there’s a standard color code for the wiring inside USB cables and yellow isn’t in the list. For this manufacturer, it seems that yellow is the new red.

    In previous USB extenders the red / black wires were a slightly larger gauge than the green / white data pair, but in this cable they’re not. That might matter if one expected the cable to carry, oh, let’s say an amp of battery charging current.

  • Primo Comet Aneurysm: Teardown

    So, as you might expect, I couldn’t let the aneurysm on that tire get away without a closer look: had to haul the poor thing out of the trash and dissect it. Here’s what it looked like on the bike:

    Primo Comet Aneurysm - inflated
    Primo Comet Aneurysm – inflated

    The outer rubber has disintegrated and is pulling away from the Kevlar belt underneath, but it’s still holding air!

    Cutting that section out of the tire and flattening it makes things look almost normal:

    Primo Comet Aneurysm - flattened
    Primo Comet Aneurysm – flattened

    Peeling the rubber off the carcass reveals that the body cords have either broken or ripped loose under the belt:

    Primo Comet Aneurysm - peeled
    Primo Comet Aneurysm – peeled

    There was no external damage over that part of the tire and I was wrong about a gash in the Kevlar belt. However, the ends of the belt overlap just above and to the right of my thumb, so perhaps there’s a manufacturing flaw in there somewhere.

    Now it’s in the trash!