You are viewing the blog index. Alternatively view all posts by categories or by tags.

Subscribe via RSS

  • Second Lattice Hinge Samples

    As part of my first week as the new Technician-in-Residence at DoES Liverpool I’ve found time to photograph the acrylic test samples. From the earlier posts, this second set of samples is sized to have the minimum possible bend radius for single laser cut to create the torsional links, and...

  • Laser Cut Christmas Trees

    I had half an hour at the end of the day at the DoES Liverpool makerspace the other day, so I had time to cut out christmas tree decoration from card and mdf that comes out of the cutter fully finished. The cut files are available for you below, or...

  • Lattice Hinged Booklets

    A Set of Hinged Covers I’m pleased to have created a first product using the lattice hinges: a laser engraved, hand printed A5 sketchbook for Red-Violet Made. They use a pair of lattice hinges gives a double fold that operates like a normal hard back book, with a flat spine...

  • Lattice Hinge Design — Choosing Torsional Stress

    The first set of lattice hinge tests I generated were a little fragile, with the maximum stress in the torsional links set to be 60MPa (the yield stress of the acrylic) it’s not very surprising that, with acrylic being a very brittle material (where the ultimate/breaking stress is very close...

  • Lattice Hinge Design — Minimum Bend Radius

    The last set of hinge tests that I showed used a cut out a rectangle of material to form the links. By re-arranging a formula that calculates the required inter-link clearance, it’s possible to find the minimum number of links to make a bend using only a single cut with...

  • Thin-Walled Structures Journal Paper

    You might have noticed that posts have been thin on the ground for the last few weeks. Along with completing the revisions for my PhD thesis (which is now submitted), I’ve also completed a journal paper that has also gone for submission. This will be the second journal paper that...

  • Seat Reclining Bar

    When I originally posted about the seat structure, I left the seat adjustment separate from the main seat structure design. I had the ideas about how to implement the adjuster, but it needed some time to let them mature into a practical design. The idea is to use the simplest...

  • add_rel_lightbox version 0.4.1

    Upgrade from your WordPress admin panel, or download from wordpress.org/extend/plugins/add-rel-lightbox/ When I moved add-rel-lightbox across to using Simple DOM Parser in place of the regex controlled for version 0.4, I had a little problem with the pre-release code stripping line breaks from every post that, although it didn’t cause a...

  • Completed Laser Cut Brackets

    You might remember from the other week that I had designed and cut some perspex brackets as an mounting for a piece of art for an exhibition. The show is now up and open as one of the independent exhibitions that are part of the Liverpool Biennial. If you were...

  • Raspberry Pi Micro

    The Raspberry Pi has been heavily influenced by the legacy of the BBC Micro — right from being an educational computing platform, all the way to having a B version that has twice the memory of the A-version, plus networking! So the first thing I wanted to do when I...

  • Subscribe via RSS