DesignSpark PCB layout software – the new kid on the block

September 9, 2010
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Up until recently Eagle CAD has been the de facto standard for home-brewed PCB design. The free version has some limitations (The useable board area is limited, two signal layers, editor can only create one sheet) but these are very rarely a problem for the hobbyist. Now there is Design Spark, a tool created by […]

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Arduino sending MIDI over USB for $3.25 in parts

September 7, 2010

I’ve built several MIDI based devices using the Arduino microprocessor – recently I found an article online about hacking this $6 USB MIDI cable (see update below) to provide hardware MIDI over USB. When my cables arrived I noticed that they were a different revision number to the one described in this article. Once I […]

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Welding a cube

August 24, 2010
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It finally got cool enough tonight to venture outside with my welding gear on. First thing I thought I would tackle as a cube, so I cut 12 pieces of steel to the correct length and started to join them together. The first lesson I learnt is that these magnetic guides from Harbor Freight: are […]

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Lotus Seven build : Step 2A completed

August 21, 2010

Finally got the build table up and levelled – which is harder than it sounds because the floor has a composite angle sloping towards the center of the room. It’s built from 2x4s and a 4×8′ MDF sheet – again thanks to Pete K for trucking the sheet up the street from Home Depot. The […]

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The uncrackable nut…

July 30, 2010

See those two bolt heads on top of the long metal frame? They don’t look like much, but they WILL NOT turn. At all. I’ve tried an impact wrench, breaker bar (4′ long!), PB Blaster, “smoker” wrench, and the Dalek – and nothing, NOTHING, will make them turn. So…. I’m going to have to cut […]

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OK, so the all of the Miata DOES fit on the trailer…

July 30, 2010

Pete just picked up the rear end and dumped it on the trailer. I got a whopping $65 for the scrap metal.

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Lotus Seven, Step 1 : Miata Teardown

July 25, 2010

This represents about 2 weeks work (in almost 100F heat, and the intense humidity that Indiana likes to lay on as a special treat). I still have a third of the car left, as the trailer wasn’t really big enough to hold the whole car – but there’s a lot more room to move in […]

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Spotted. Another Super Seven in Indianapolis…

July 24, 2010

So I was driving along 96th street in Indianapolis this morning, and when I pulled up to the Meridian Street stop light, I saw this: Wasn’t expecting to see that – it had the big ‘7’ logo on the front, so it could be a Caterham – anyone out there know who owns it?

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The Lotus Super Seven, it begins…

July 11, 2010

Just bought a 95 Miata… IT’S ON! The goal is to turn this: into this:

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QRD1114 home sensors installed and tested

July 7, 2010

I “test fitted” the sensor circuits to the gantry tonight and I’m pleased to say that they work with a surprising degree of accuracy. The sensors are wired to input pins 11 (X), 12 (Y) and 15 (Z). I used the Mach 3 “auto set” feature to configure the pins as home for M1, M2 […]

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