Category Archives: Making stuff

Filtering out outliers in Arduino ultrasonic distance sensor data

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 … Continue reading

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Making a composite material from ABS slurry

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 … Continue reading

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3D-printed buildings and military units for King of New York

Here’s a project I recently finished: 3-printed buildings and military units for the board game King of New York:

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Obi-Wan Kenobi’s flashlightsaber

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.

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Wooden Tsuro tiles

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 … Continue reading

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Pepakura Iron Man helmet – Part 4

Continued from part 3 Day 16 Is there no end to the filling and sanding?

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Hacking the Xbox – epub version

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 … Continue reading

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Storage box for 3D-printer

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 … Continue reading

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HSL departures heatmap

I created a a simple application using the HSL open data XML dump, the MapQuest Javascript API and the heatmap.js library. Here’s a screenshot: The heatmap shows the number of departures from each stop in the HSL public transport system. … Continue reading

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Resistor tools

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 … Continue reading

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