I have this little SLA battery that enables my emergency generator to start without using the pull cord. I don’t have a maintainer on this batter (and maybe I should), so every once in a while I like to charge…
About a year ago I make a bunch of loaves and fishes for a Godly Play story at the church. I made them out of 3mm door hanger plywood that I picked up at the local craft store using a…
Apparently this new version is a lot better at math, so I tested it out with some simple calculations. Here’s how that went: This is pretty straightforward. A 3.65″ diameter is a circumference of about 11.5″, and that distance 1,750…
We got these blinds a couple of years ago from Amazon, and recently one of the string take-up mechanisms jammed because the string apparently came off the pulley wheel and wrapped around the shaft. I contacted customer service about how…
I got the Viofo A129 Duo a couple years ago because I seem to keep getting cut off in my little Mazda MX-5 Miata ND (2016+). It’s a ragtop convertible with only one obvious place to mount a rear-facing camera,…
Here’s how I start with a screenshot (bitmap) of a vector image and prepare it for laser cutting. Usually for cutting I need one path around the outside of the image (for the cut path), and then other paths that…
I got a bunch of $1 ESP-12F’s with the venerable ESP8266 for some projects and although there are some other posts out there that try to describe which pins to use for what purposes, I couldn’t find one detailed enough…
We got a Mazda CX-5 and so far we’re pretty happy with it. We wanted an organizer in the back, though, to help prevent things from falling over and rolling around, and we wanted it to be easy to collapse…
[sc:3dclub-intro] We’ve learned a lot while implementing our 3D Printer Club project plan at a local elementary school, and in the process, we’ve come up with a number of guidelines and ideas to help you get started doing the same…
[sc:3dclub-intro] Here’s the design for the shirt the kids wear when they want to teach people how to get into building 3D printers. (Click to download SVG, resize, and print on a t-shirt transfer.)