Canon EF-S Lens Repair

Canon EF-S Lens Repair

May 21, 2014
I repaired the focus commutator on a Canon EF-S 18-55mm lens . The fault manifests as an inability for the lens to focus in both directions. In other words, it’ll focus in one d...
Geek is Good Photobooth

Geek is Good Photobooth

May 17, 2014
I created an interactive display for the Geek is Good exhibition that was/is held in the Oxford Museum of the History of Science from May-September 2014.
Arduino Controlled Soldering Station

Arduino Controlled Sol...

Apr 7, 2014
I replaced the faulty controller in my soldering station with an Arduino. The soldering station is a combined iron and hot-air lance and is branded as a Duratool ZD-912. I got ...
RFID Door Lock

RFID Door Lock

Mar 2, 2014
I created a door-entry system for Oxhack using RFID smart cards. Oxhack is the Oxford Hackspace. The system is probably a little more complicated than it could be, but this opti...
Light Painting 2

Light Painting 2

Feb 3, 2014
This is an extension to my earlier light painting project.
Interactive Plots in Octave

Interactive Plots in O...

Jan 14, 2014
Here’s a trick I used to present multi-dimensional data with the Octave mathematical programming language. In my particular application, I had a dataset that varies with respec...
Schlieren Photography

Schlieren Photography

Nov 23, 2013
Schlieren imaging is a technique that lets you see small changes in refractive index .
Temperature Logger

Temperature Logger

Nov 23, 2013
The temperature and humidity of our house is something that’s been bothering me for a while. We’re very frugal with the heating and I wanted to know how much difference install...
Light Painting

Light Painting

Jul 14, 2013
Persistence of vision effects have been a minor interest of mine for several years, and I recently discovered an LED strip for sale containing 60 individually addressable RGB L...
Timer Controlled Cat Flap

Timer Controlled Cat Flap

Apr 22, 2013
We like to prevent our cat from going out too late at night , so we tend to close our cat flap when it’s getting dark. When we’re not home before it gets dark, or are busy, some...