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.

Month: March 2012

  • Yellow Iron: Puzzling Placards

    The local construction equipment supplier deploys otherwise-idle yellow iron in all the parking lots in preparation for snow season. They haven’t gotten much use this year, which is OK by me.

    A Komatsu excavator behind a bank sports some puzzling warning placards:

    Komatsu excavator waiting for snow
    Komatsu excavator waiting for snow

    This one seems to mean you should stay out from underneath the bucket, which makes sense:

    Komatsu warning placard 2
    Komatsu warning placard 2

    But what’s this one mean? You may be crushed, so keep your distance from doors?

    Komatsu warning placard 1
    Komatsu warning placard 1

    Maybe read the manual before / while being backed over?

    Komatsu warning placard 3
    Komatsu warning placard 3

    Even though this stuff has become entirely too abstract for me, it’s just another day in the life for Stickman!

  • Red Oaks Mill Dam: Fading Fast

    A combination of neglect and last year’s storms demolished much of the Red Oaks Mill dam:

    Red Oaks Mill dam - after collapse
    Red Oaks Mill dam – after collapse

    The linear “rocks” just downstream of the dam are sections of the concrete cap:

    Red Oaks Mill dam - displaced concrete
    Red Oaks Mill dam – displaced concrete

    With the cap gone, the concrete-and-rock fill should disintegrate in short order:

    Red Oaks Mill dam - crumbled section
    Red Oaks Mill dam – crumbled section

    Upstream of the rubble, the Wappingers Creek dropped about three feet, exposing bedrock and undercutting the old shoreline:

    Red Oaks Mill dam - exposed creek bed
    Red Oaks Mill dam – exposed creek bed

    Downstream, not much changed. This wasn’t a catastrophic dam break that wiped entire towns off the map.

    In February 2005, the fishing must have been pretty good:

    Red Oaks Mill Dam - 27 Feb 2005
    Red Oaks Mill Dam – 27 Feb 2005

    It’s endured quite a few floods like this one in February 2008:

    Flood Stage in Red Oaks Mill
    Flood Stage in Red Oaks Mill

    But in June 2008, after the waters receded, you could tell things weren’t right:

    Red Oaks Mill Dam - 2008
    Red Oaks Mill Dam – 2008

    Looks like a shovel-ready project to me…

  • GPS+Voice Interface for Wouxun KG-UV3D: Brassboard

    After measuring & fiddling around with all those capacitors, the rest of the board went together fairly easily:

    GPS-HT Wouxun interface - brassboard
    GPS-HT Wouxun interface – brassboard

    It’s difficult to test from the Basement Laboratory, although the tones and audio levels sound about right.

    The next step: conjure up a box. That shape has nothing to recommend it, so I’m doodling an extrusion-like shell with endcaps that should work better and look nicer… but that’s behind some other stuff that must happen first.