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

  • Engraved Popsicle Sticks

    Engraved Popsicle Sticks

    Having found a handful of popsicle sticks on my desk, I had to finish this up:

    Popsicle stick markers - engraving
    Popsicle stick markers – engraving

    The fixture has the same layout as the craft stick version, sized to fit the smaller sticks. They’re a bit thicker than the chipboard sheet, but match up well enough for the purpose.

    Even though the sticks don’t have much room for cutout letters, I had to try it anyway:

    Popsicle stick markers - finished
    Popsicle stick markers – finished

    Aligning the template to the fixture uses LightBurn’s Print-and-Cut tool, which seems easier than nailing the fixture to the laser platform.

    I suppose if they ever make actual popsicles with wood handles, they can tell who gets which one.

    For whatever it’s worth, the larger craft stick markers in the garden remain in good shape.

  • LED and CFL Bulb Reliability: Another Data Point

    LED and CFL Bulb Reliability: Another Data Point

    Spotted in a soon-to-be-rebuilt rest area on I-87 north of Kingston NY, a chandelier stuffed with old-school CFL bulbs of various vintages:

    NYS I-87 Rest Area - CFL chandelier
    NYS I-87 Rest Area – CFL chandelier

    The yellowish dome on the far right might still house an incandescent bulb, but I can’t tell from here.

    Judging from the high color temperature and even illumination, the chandelier next to it has 16 newish LED bulbs:

    NYS I-87 Rest Area - LED chandelier
    NYS I-87 Rest Area – LED chandelier

    What’s of interest: both chandeliers have two dead bulbs and, perhaps, the center floodlight of the LED fixture had died, too. We don’t know how long they’ve been in place, other than that the LEDs are certainly more recent, but a 6% failure rate is nothing to brag about.

    From what I’ve seen, the reliability of both CFL and LED bulbs is greatly overstated and certainly do not justify preemptive replacement of a working bulb of any vintage.

  • Chipmunk Sprint Speed

    Chipmunk Sprint Speed

    The trail camera caught a chipmunk with cheek pouches stuffed full of maple seeds:

    Chipmunk Run - 0042
    Chipmunk Run – 0042

    The critter evidently heard something, as it froze in position for some seconds, then launched toward its burrow somewhere on the left:

    Chipmunk Run - 0047
    Chipmunk Run – 0047

    Whatever it heard must have been terrifying:

    Chipmunk Run - 0053
    Chipmunk Run – 0053

    It covered 2 m across the camera field in 1/2 s (15 frames at 30 f/s) for an average speed of 4 m/s = 9 mph from launch.

    A slide show for your edification:

    • Chipmunk Run - 0042
    • Chipmunk Run - 0045
    • Chipmunk Run - 0047
    • Chipmunk Run - 0053
    • Chipmunk Run - 0058
    • Chipmunk Run - 0059
    • Chipmunk Run - 0060
    • Chipmunk Run - 0061
    • Chipmunk Run - 0062

    We know this chipmunk as “Stumpy”, because of its half-length tail, and think it has considerable motivation for outstanding speed.

    Tail high, little one!

  • Tour Easy: Another SJCAM C100+ Mount

    Tour Easy: Another SJCAM C100+ Mount

    Eight years of progress in the action camera world gets you from a rather expensive Cycliq Fly6:

    Tour Easy - Fly6 image
    Tour Easy – Fly6 image

    To an SJCAM C100+ camera costing the better part of fifty bucks on closeout:

    Tour Easy - C100 image
    Tour Easy – C100 image

    The camera is mounted on the side of the seat frame on Mary’s Tour Easy:

    Tour Easy C100 mount - side rail
    Tour Easy C100 mount – side rail

    The slightly tilted picture comes from the frame rail’s incline. My C100+ camera mounts on the horizontal part of the rail:

    Tour Easy C100 mount - rear rail
    Tour Easy C100 mount – rear rail

    As expected, the internal battery does not last for our usual hour-long rides, so the cameras now operate in “car mode”: recording starts when we plug in the USB battery pack and stops shortly after unplugging.

    I started with the waterproof case on my bike:

    Tour Easy - SJCAM C100 mount - installed
    Tour Easy – SJCAM C100 mount – installed

    Which (obviously) does not allow for an external battery, so they’re now in the “frame” mount. The hatch covering the MicroSD card and USB Micro-B connector (and a Reset button!) is on the bottom of the camera, but (fortunately) the whole affair mounts up-side-down and the settings include an image flip mode.

    Putting the camera on the side required changing the mount angle from -20° to +35°:

    SJCAM C100 Mount - 35 degree solid model
    SJCAM C100 Mount – 35 degree solid model

    The ergonomics / user interface of this whole setup is terrible:

    • The camera’s flexible hatch is recessed inside the frame far enough that it cannot be opened without using a small & sharp screwdriver
    • The USB jack is slightly off-center, so lining the plug up with the camera body doesn’t align it with the jack
    • The MicroSD card is in a push-to-release socket, but its raised ridge faces the hatch flap and cannot be reached by a fingernail. I added a small tab that helps, but it’s difficult to grasp.

    Extracting the video files from the camera through the app is an exercise in frustration. Having already figured out how to do this for the other cameras in the fleet, it’s easier to fumble with the MicroSD card.

    I devoutly hope we never really need any of the videos.

  • Miroco Floor Lamp Base Details

    Miroco Floor Lamp Base Details

    The pole of our much-repaired Miroco floor lamp screws into a weighted base:

    Miroco floor lamp base - assembled
    Miroco floor lamp base – assembled

    Because the lamp has a big nut apparently holding the pole socket to the base, I figured a dab of threadlock on the pole or the base would solve the problem: lock the pole to the socket, then remove the nut to disassemble when needed. That turned out to be a Bad Idea™.

    The socket is a plastic part separate from the base cover plate:

    Miroco floor lamp base - socket
    Miroco floor lamp base – socket

    A pair of keys prevent the socket from rotating in the hole:

    Miroco floor lamp base - socket in place
    Miroco floor lamp base – socket in place

    Four threaded bosses (two visible there) hold the rim of the cover to the weight, with the socket doing the hard work.

    A fender washer atop the weight distributes stress from the pole:

    Miroco floor lamp base - weight top washer
    Miroco floor lamp base – weight top washer

    Another fender washer on the bottom of the weight lets the nut jam against steel, rather than soft plastic:

    Miroco floor lamp base - weight bottom washer
    Miroco floor lamp base – weight bottom washer

    FWIW, the nut is either a perfect 15/16 inch or, more likely, a sloppy 24 mm.

    In any event, permanently locking the pole to that socket will also lock the pole to the base, with no way to dismantle the lamp when I must once again repair it.

    Perhaps a wrap of PTFE tape on the threads will stiffen it enough?

    Certain better looking than black duct tape …

  • They’re Paying for This?

    They’re Paying for This?

    Another problem with the same monitor as before:

    Broken image link
    Broken image link

    This one looks like an ordinary broken link:

    Broken image link - detail
    Broken image link – detail

    Mary has some opinions on their software testing process, but AFAICT that entire department is missing in action.

    Having spent entirely too much time on the road and not nearly enough time in the shop, things will be quiet around here for a few days.

    Drive to stay alive …

  • New Jeep, Reckless Driver

    New Jeep, Reckless Driver

    Some drivers give us absurd amounts of clearance, which is what we thought the driver of the white Jeep was doing:

    New Jeep Reckless Driving - Jeep passing
    New Jeep Reckless Driving – Jeep passing

    Some drivers give us very little clearance, either deliberately or though negligence, which is what I thought the driver of the silver Subaru was doing:

    New Jeep Reckless Driving - Subaru close pass
    New Jeep Reckless Driving – Subaru close pass

    Reviewing the videos revealed a different story that could have ended very badly for everyone involved.

    Moving back in time, we crossed the bridge over the Wappingers creek, which has two southbound lanes. The left lane is dedicated to left turns onto Red Oaks Mill Road and the right lane is for through traffic southbound on Rt 376:

    New Jeep Reckless Driving - Red Oaks Mill bridge
    New Jeep Reckless Driving – Red Oaks Mill bridge

    I had noticed oncoming drivers in the northbound lane were moving far over to the fog line, but (unseen by me) they were definitely swerving off the road:

    New Jeep Reckless Driving - swerve 1
    New Jeep Reckless Driving – swerve 1

    It seems the Jeep driver crossed the bridge in the left lane and continued straight through, passing the solid line of vehicles in the right lane behind us. You can see the top of the Jeep’s windshield peeking out behind the Subaru, with minimal clearance to the black car swerving out of the way:

    New Jeep Reckless Driving - swerve 1 clearance
    New Jeep Reckless Driving – swerve 1 clearance

    There’s not much shoulder on that side of the road, but the driver of the white Honda is using it all:

    New Jeep Reckless Driving - swerve 2
    New Jeep Reckless Driving – swerve 2

    With all the oncoming traffic out of the way, the Jeep driver now accelerates in the wrong lane:

    New Jeep Reckless Driving - passing 1
    New Jeep Reckless Driving – passing 1

    And passes the Subaru just behind us:

    New Jeep Reckless Driving - passing 2
    New Jeep Reckless Driving – passing 2

    The license plate looks like JAE-7751, early in the “J” plate series, so that’s a shiny new Jeep.

    Being passed at close range in an obviously no-passing zone caused the Subaru driver to flinch in our direction:

    New Jeep Reckless Driving - Subaru clearance
    New Jeep Reckless Driving – Subaru clearance

    Unsurprisingly, the Jeep driver ran the red light at the top of the hill, presumably to avoid being stopped directly in front of us.

    Never a dull moment out there on the road …