A friend of mine asked me how he could remove invalid data points from the measurements made by the ultrasonic range finder in his Arduino project. A quick search got me to this page, but some of the links were dead and there was no complete example on the page anyway, so I decided to… Continue reading Filtering out outliers in Arduino ultrasonic distance sensor data
Since I do a fair bit of 3D-printing, there’s always plenty of scrap ABS available. Some of the scraps go into the acetone / ABS slurry that I use to coat the build platform before each print, but there’s still plenty more to go around. So, this got me thinking: “If I make something out… Continue reading Making a composite material from ABS slurry
Here’s a project I recently finished: 3-printed buildings and military units for the board game King of New York:
I happened to find this 3D-printable model of Obi-Wan Kenobi’s lightsaber, so I decided to see if me and my 3D-printer were up to the task. There’s also an article about designing the lightsaber model in the Ultimaker blog.
Well, plywood, really. With printed paper glued on top to make the paths. What I actually want is a set of tiles where the paths and the background are made of different coloured wood veneer, but that would require investing in some new tools and spending a lot of time cutting the pieces. So, for… Continue reading Wooden Tsuro tiles
Continued from part 3 Day 16 Is there no end to the filling and sanding?
After finishing Cory Doctorow’s Little Brother, I was going through the “suggested reading” section at the back of the book. A title called “Hacking the Xbox – An introduction to reverse engineering” caught my eye, and I decided to see if there was an ebook available. Sure enough, the book had been released by the… Continue reading Hacking the Xbox – epub version
For a long time I considered ordering a custom-built flight case for my Solidoodle 2 3D-printer, but the prices were high enough that I never actually placed the order. Then, inspired by Adam Savage’s box build videos on Tested.com, I decided to build my own. Here are a few pictures of the finished product. I… Continue reading Storage box for 3D-printer
I just wrote a parallel resistor value calculator, and a resistor colour code calculator. There are lots of them on the web, but most of them seem to have a 1990’s era user interface, where you need to enter values into separate fields and then click on the “Calculate!” button. Blech. So, I rolled my… Continue reading Resistor tools