Greyed out "Use software OpenGL" in Solidworks

Alert: Very boring post follows. TL;DR - Had a cryptic Windows graphics problem, fixed it with obscure registry bodge. Vintage.

Submitted by jeff on Mon, 08/27/2012 - 18:49.

Designing a chair

is the "Hello World!" of design. For my masters course, the first solo module is an exercise in chair design. It's called Superform, and the brief is to design a "Chair plus..." which I'm free to interpret however I wish. I'm two thirds of the way through the project. I've submitted three chair proposals, and I'm about to build one of them.

TROOPERS conference badge

Electronic badges are all the rage at IT security conferences these days. I think DEFCON started it all with badges made by Joe Grand, but there have been many others, like the Sputnik RFID tags at 25C3, the expandable bunny badges at Easter Hegg, Munich, by lilafisch and friends, and Travis Goodspeed's badge for The Next Hope.

I created 210 interactive badges for the TROOPERS11 IT-sec conference in Heidelberg last month. They feature some ethereal vintage vacuum glassware - IN-16 nixie tubes made at the Reflector factory in Saratov in the former USSR in 1989. I purchased them new-old-stock from some handy guys in Lithuania.

Staying ahead of the social media curve

I just signed up to twitter! Finally a platform where I can write tiny, nonsensical blog posts without feeling guilty about it. Follow me here , if you're into that sort of thing.

Submitted by jeff on Mon, 03/21/2011 - 19:27.


I've just taken delivery of some special technology from the USSR, via
'friends' in Lithuania. Part of a special project for the TROOPERS 11
IT-sec conference in Heidelberg next week.

I'll be in Heidelberg until the 1st, then I'm heading to Berlin for a few days. Drop me a line if you fancy a bier.

Submitted by jeff on Mon, 03/21/2011 - 17:59. categories [ ]


I'm applying to study Innovation Design Engineering at the RCA/Imperial College. As part of the application process I had to write a portfolio. I'm quite proud of the number and quality of crazy projects I've crammed in over the last few years. It features lots of projects which I haven't got round to blogging about! Check it out here .

Submitted by jeff on Thu, 02/03/2011 - 18:39.

A friend needs help

Three years ago, one of my oldest and best friends, Luke Flatman, had a serious car crash. Several of his bones were broken, one smashed, and he suffered a serious brain injury. He was in a coma for 10 days, and awoke with serious problems with his memory and reasoning.

He has made an incredible recovery over the years and, though he still has some trouble with his memory, he is back as I know him. He got back to university, finished his degree, and is now looking to start a career in music production.

I am very grateful to the NHS for the excellent treatment and care he received. So is he, and to express some of his gratitude, he's running the London Marathon in April to raise money for the Brain Injury Rehabilitation Trust. He lived at their rehab centre for 2 months, where they provided a program of intensive exercises and assessment to improve his brain function.

I can really vouch for the quality of their work!

So please sponsor him if you can afford it. It's really easy, they accept credit/debit cards and Paypal, and non-UK cards are no problem.

Submitted by jeff on Thu, 02/03/2011 - 16:49.

27C3 File->Print->Electronics

At 27C3 I gave a talk about inkjet printing PCB's. Over the last few months I've been working on reverse engineering the printhead from an Epson Stylus S21 to get it to print molten wax.

As usual, I thoroughly enjoyed my time at CCC. Thanks to everyone who came to my talk, asked questions, gave me suggestions and feedback. 

Slides are available here , and.

My talk is up on youtube here

Submitted by jeff on Sat, 01/01/2011 - 13:53.

LA Jefffidential

I'm going to be in LA for a week. If you're interesting, and live in LA, give me a shout and we'll have a pint. Or a litre, as you call them over there.

Submitted by jeff on Mon, 07/19/2010 - 22:47.

Formica Workshop : FAIL

We told you that we were going to present a workshop at 26C3 and sell kits. Well, we've failed. Revising the design was a greater undertaking than we could cram into the little free time we had before the conference.

We have made a number of design improvements:

Submitted by jeff on Thu, 12/24/2009 - 00:48.