Custom PC Magazine, Issue 158

Custom PC Magazine Issue 158This month, my regular Hobby Tech column is interview-heavy. You’ll find two pages dedicated to Grant Macaulay of Theo Lasers, another two to Barry Getty of the Dark Water Foundation, and a final page reviewing the Genuino Zero microcontroller simply for a change of pace.

First, Grant. I met Grant at the recent Maker Faire UK, where he was showcasing prototypes of the Theo Laser laser cutters. These devices immediately caught my eye: rather than the usual red or beige metal, the cases were made from unfinished laser-cut wood. Each housed a low-power diode laser, and the top-end model was set to retail for around Ā£1,000. A few months later Grant was getting ready to hit the go-live button on a Kickstarter campaign to fund the project, and kindly took some time to walk me through his hopes for Theo Lasers – not to mention the thinking behind his decision to release everything from the hardware designs to the source code under a permissive, open-source licence.

Barry’s another contact from an event: Liverpool MakeFest 2015. There, I talked to Barry as his Dark Water Foundation ran a Lego-based workshop teaching the young and the not-so-young how to build open-source remote-operated submersible vehicles (ROSVs). Like Grant, Barry’s work didn’t stop when my original interview ended and I recently caught up with him to discuss some new designs: the Dark Control boards. Designed for use with the Raspberry Pi, these add-on boards allow for connecting up to six motors – important, he tells me, for full freedom of movement – quickly and easily, while also adding support for radio control systems and inertial measurement units.

Finally, the Genuino Zero. Kindly provided by oomlout as part of a collection of hardware I’m slowly working my way through testing, the Genuino Zero – known as the Arduino Zero in the US – drops Arduino’s traditional 8-bit ATmega microcontroller family in favour of a 32-bit ARM Cortex-M0+. The result is a board that looks for all the world like an Arduino Uno, but which offers considerably different capabilities and improved performance.

All this, and the usual selection of interesting things written by people who aren’t me, can be found in your nearest supermarket, newsagent, or electronically via Zinio and similar digital distribution platforms.

Custom PC, Issue 147

Custom PC Issue 147This month’s Hobby Tech column kicks off with a two-page head-to-head review of rival starter kits for those interested in having a crack at e-textiles technology: the Adafruit Gemma Starter Kit and the Kitronik Electro-Fashion Deluxe E-Textiles Pack, both courtesy CPC.

The field of e-textiles, or soft circuits, is driven by one invention: conductive thread. There are various ways of making thread that can conduct electricity, and the two companies featured in my review have opted for different methods: Adafruit weaves thread directly out of stainless steel, which produces a thin yet strong thread; Kitronik takes traditional thread and coats it in a layer of silver before weaving it into a thicker denier which is softer and more flexible than Adafruit’s version. Either way, the result is the same: a thread you can sew, by hand or machine, and which conducts electricity to any electronic components your heart desires – up to a power draw of a handful of micro-amps, of course.

The two kits both look to introduce the user to e-textiles, and there’s a shared approach which concentrates on that most traditional of hardware Hello, World projects, making LEDs light up. The lower-cost Kitronik kit focuses on dumb switches, although some bundled full-size LEDs have built-in blinking circuitry for a modicum of intelligence; the more expensive Adafruit kit, meanwhile, includes the company’s Arduino-compatible Gemma wearable microcontroller, giving it considerably more flexibility. It also includes needles, a strange omission from the otherwise ready-to-go kit put together by Kitronik. As to which came out on top, you’ll just have to read the review to find out.

Another two pages of this month’s column are spent on my report from Manchester MakeFest, unrelated to the recent Liverpool MakeFest, and my personal highlights from the Museum of Science and Industry’s first home-brew maker-centric event. These included Bare Conductive Touch Board powered signing bowls used in the education of special needs pupils, a teletype clattering out ASCII art from a paper tape courtesy theĀ Manchester Vintage and Retro Computing Enthusiasts group, and the wonderful blend of analogue and digital that is the B0rkestra project. There’s plenty more I couldn’t fit into the wordcount, with more coverage of the event available on the oomlout blog for the curious.

Finally, I had the opportunity to talk to Ben Gray about his MeArm project. Reviewed in an early form back in Issue 133, the MeArm is a low-cost hobbyist robot arm built from a single piece of laser-cut acrylic and released under an open hardware licence. Since my original review, Ben has closed down his hobbyist supply company Phenoptix in order to concentrate on MeArm full time, and it shows – the new design is a considerable improvement, and now comes with optional joypad attachment and even a dedicated microcontroller option. Ben’s promised to send across a review sample of the new and improved MeArm as soon as he’s able, so expect to see it covered more fully in a future issue.

All this, plus other interesting things written by people who aren’t me, can be yours with a trip to your local newsagent, supermarket, or from the comfort of wherever you’re reading this from via Zinio and similar digital distribution services.

Custom PC, Issue 145

Custom PC Issue 145In the pages of this month’s Custom PC magazine you’ll find my regular Hobby Tech column split into three segments: a two-page review of the Velleman 3D Printing Pen, a further two pages of coverage from the Liverpool MakeFest, and a final page reviewing the excellent Petduino from Circuitbeard.

First, the Velleman pen, kindly provided by CPC. Considering that I write a column about – among other topics – maker culture, it’s a real surprise I’ve never really delved into 3D printing before. It’s a topic that interest me, but one which is difficult to address easily: printers are bulky, expensive, and even when review samples are available they typically need hours of assembly and fine-tuning which can be difficult to fit into a freelancer’s budget.

The Velleman 3D Printing Pen, on the other hand, requires close to zero set-up. Connect the mains adapter, insert some of the bundled PLA filament, and hold down the motorised feed button, and it starts chucking soft filament out of the nozzle like a good ‘un. It’s a simple design, based on glue guns and ‘inspired’ by the pre-existing 3Doodler, but it lacks the fine control of a true 3D printer: the box shows someone ‘drawing’ the Eiffel Tower, but I call shenanigans on that one.

The event coverage comes courtesy of client oomlout,Ā on whose behalf I attended the first Liverpool MakeFest. It was, as these events often are, a stunning success and great fun, despite a hiccough where my cheap Jessops speed-flash died a few minutes into the day – an issue I was thankfully quickly able to resolve by running to a nearby photography shop and picking up a second-hand Nikon replacement, thusly also blowing any hope of seeing a profit.

Regardless, there were several personal highlights from the day including a great chat with the event founders and seeing friends including Ben Grey of MeArm fame and Adrian McEwan of DoES Liverpool with his ever-popular Nerf shooting range. I was also pleased to learn that the response of the public was good enough that the Liverpool Central Library is keen to work with organisers to run the MakeFest as an annual event.

Finally, the review. I met up with Circuitbeard – more properly known as Matt Brailsford, and yes his beard is impressive in the hairy flesh – at the recent Halifax Mini Maker Faire, where he was kind enough to provide me with a prototype of his Petduino design. Based on the Arduino platform, the Petduino is part development board and part virtual pet. Designed to get kids – and the young-at-heart – interested in software and hardware development, the Petduino comes with a range of open-source ‘personality’ Arduino sketches which can be installed and hacked about to change its behaviour. It’s a great tool for teaching, and with sales of the initial batch off to a flying start one I predict will be very successful – and I can’t wait to see the promised add-on kits Matt has planned.

All this, plus the usual raft of interesting things written by people who aren’t me, can be yours with a trip to your local newsagent, supermarket, or digitally via Zinio and similar services now.