Stephen Hobley

CNC Axis Home detector using QRD1114 IR proximity sensor

July 6, 2010

One thing missing from our CNC routers is an automatic axis home circuit. This is something that signals the control software that the gantry is in a known position (usually at the origin). A lot of CNC hobbyists like to use the end mill as part of the homing circuit – this is OK, but […]

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4th of July fireworks

July 5, 2010

Pete’s house has a great view of the downtown area of Indianapolis. Humidity was high, but we I managed to get a couple of decent shots of the festivities… [nggallery id="15"]

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Archive of The Laser Harp Pages

July 1, 2010

For many years Manuel Schulz maintained The Laser Harp Pages. This site was a major influence on me, and offered some wonderful technical information on how a laser harp could be constructed. In early in 2010 he decided to close the site. Later the same year he asked me if I would be interested in […]

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Doctor Who – The Big Bang – BRILLIANT!

June 26, 2010

THAT… WAS… GREAT…! …I even went back to verify the whole “jacket / no jacket” thing in Episode 5 [17.55] and it really does check out…. …and YES that was the Egyptian sarcophagus from “Pyramids of Mars” BRILLIANT! My only slight niggle was that Philip Madoc wasn’t in it – and neither was the “Time […]

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Source code for Twitter World Mood Light

June 25, 2010

I’ve been asked a couple of times for the source code to the World Mood Light I ported to use the WiShield. I put it all in a RAR archive file and you can download it here.

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Welding! again…

June 20, 2010

OK so after some intense welderization I can just about do this: I call it “Arbitrary Metal Thing #1″ After I was done I threw it up the street a couple of times to “test the seams” and it held together quite well. And I got a nice welder’s sunburn on my left forearm on […]

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Hey, another TARDIS in Indy

June 19, 2010

And I thought I had the only Police Box in Indianapolis – looks like someone has built one on the west side of town. So much for the perception filter.

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Welding! Or kind of…

June 19, 2010

I’ve been putting this off for *ever* but today I went out and bought myself a welding kit from Lowe’s. I bought the Lincoln Electric 140 amp model, as it was the highest output that could still run on 120V. It supports gas shield, and flux core welding and comes in a natty red colo[u]r. […]

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Wicked Lasers – the lightsaber you can buy

June 16, 2010
Thumbnail image for Wicked Lasers – the lightsaber you can buy

I recently received the link to Wicked Lasers by a workmate looking for my feedback on the latest product offering – a handheld blue laser with an output power of 1Watt (yes, 1 Watt) for $197. The apparent similarity in design to a lightsaber handle is completely accidental. Link Here At first I thought it […]

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Arduino World Mood Light using Twitter and WiShield

June 11, 2010

This is an implementation of the recent article on instructables.com describing a Twitter World Mood Light, ported to use the WiShield wireless networking device.

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