• I put off finishing making a wooden box for years. The parts, four panels and a sheet of panel ply have been at my workbench for ages, but I have waited to finish the box because I couldn’t figure out…

  • I have a cylindrical acrylic Lichtenberg figure I have been displaying for several years on a turned cherry base I made…and never liked. I decided to improve the situation by building a system for more uniform illumination of the entire…

  • For years I’ve wanted a theodolite but even used they are not particularly affordable. To support planning sky viewing a wanted to be able to survey the obscuration from buildings and trees in my front and back yards. Thingiverse offered…

  • I made a thing. This thing is–neh, this ensemble of things–is a Raspberry Pi 3 server with attached local sensors and an attached local eInk display. Furthermore this Pi uses an RTL SDR to collect information from my outside sensors…

  • The previous dryer only achieved a peak temperature of about 47C, which is much lower than the recommended 80C from 3devo. I made two upgrades: Wrapped the bucket in a moving blanket for insulation, and then because I was concerned…

  • I built a filament dehydrator following the basic plan on Taulman3D’s site, which I expect to need for both PETG and nylon prints. PLA prints have never been a problem for me here in the high desert. Taulman3D suggests using…

  • I have noticed that when I’m writing scratch notes on the back side of waste printer paper with my fountain pen I get blobby lines. It usually feels difficult to write clearly, especially when I scribe crossing paths in a…

  • I like to use closed headphones. These often significantly attenuate outside noise but challenge me to hear my own voice. Typical attenuation of some relevant headphones or headsets are summarized by the following table. Headphone Attenuation Westone in-ear Monitors 23…

  • Look at the right-most figure in diagram. The small triangle defines the all the major dimensions of the hexagon. Assuming the user measures the edge-to-edge dimension $c$, he or she can calculate the rest of the measurements. A simple right-triangle…

  • School, from our house as the crow flies, is 5.73 km. If we neglect air resistance and deal strictly with ballistic flight then we can materialize a wonderful fantasy. Starting in the backyard, extending over the top of the house,…

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