# Category Archives: Deferred Procrastination

## A003_R002 Seat Design

The seat structure seems to have taken the most time of all the assemblies to re-design, though it was interrupted by some thesis redrafts. It’s perhaps a measure of the amount of how much work was needed on the previous revision (A003_R001). One crucial task in the redesign was changing the cross beams from aluminium […]

Upgrade from your WordPress admin panel, or download from wordpress.org/extend/plugins/add-rel-lightbox/ Version 0.4 switches from identifing the link-wrapped images in a page with hacked-together regexes that just about work, to properly parsed HTML structure using PHP Simple HTML DOM Parser. When I initially tried to release version 0.4 and installed the updated plugin on this site, […]

## Seat Shape

This post is a bit of a development of design ideas. Sometimes it’s good to go through each stage of a design and explain why it has been rejected. Of course, like any design process there’s a good deal of opinion, approximation and guesswork to it, so be sure to add a comment below if […]

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## Cockpit Clearances

Designing a cockpit to accommodate a range of rider sizes is more complex than laying out the controls to fit one rider; especially having a steering wheel control for such a reclined operator instead of underseat/tiller steering or a moveable yoke. To account for different height riders while still keeping the rider’s eyeline above the […]

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## Ce n’pas une entrée de blog

It’s crunch time for thesis revisions this week, so there’ll be no blog post. Except this one. Which isn’t one. Back next week. As in: The Treachery of Images

2 Comments | Short URL: http://def-proc.co.uk/b/yanyu

## add-rel-lightbox now using Simple HTML DOM

When I first mashed together add-rel-lightbox, I used regular expressions to control and replace the relevent parts. This was my fault. Regexes were the only tool I had. It was a bad thing. Parsing HTML with regex is wrong. […]using regex to parse HTML has doomed humanity to an eternity of dread torture and security […]

## Kingsbury K-Drive

The video below of the Human Power Team‘s elliptical drive system is the first time I’ve seen a non-circular power system in motion. Functionally identical to the “K-Drive” of the Kingsbury Kingcycle, the mechanism is first described in 1890, so it might be more correct to call it a “Vietor Elliptical Drive”, it’s best known […]

Also posted in Atomic Duck, Open Source Engineering | Tagged , | 2 Comments | Short URL: http://def-proc.co.uk/b/oxgzp

## Making it Better—Open Source CNC

CNC routers and laser cutters are now common machines. Not ubiquitous, like a hammer, but they are common enough that I can send a pattern for cutting, or visit a lab and operate one myself. However, they still remain expensive, industrial machines. Makerslide took the idea of a standard aluminium extrusion frame system, used for […]

I’ve mentioned previously that I’ve got a large project in $$\LaTeX$$ and while I was using Dropbox as a pseudo revision control and external backup. However, I’ve since been persuaded that a proper revision control system with meaningful commit message is a better way of tracking progress and changes. So I’ve moved the project to […]