A quickie project. Two stepper motors, a UV laser, some luminous paper, an Arduino, a couple of ULN2803 drivers for the motors, and a “daisy wheel” printed onto transparency film….
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This was a lovely touch by someone on the production – as Bond phones to ask for information on a Mr. Greene, we cut to his headquarters, where Bond’s request…
I’ve got a few of these little LED displays knocking about. They’re the same kind I used a couple of years ago on my Landrover speedo thingy. They’re not too…
The most useful thing a computer controlled mill could do for me is make circuit boards. It’s a nice thing to get started with, anyway. Here’s the first one I…
Managed to get hold of a rare old mill – an Emco F1. It’s a beast. Here’s what they look used to look like when they were first sold (gotta…
If you’re ever in a posh car or on an expensive motorbike, you’ll sometimes notice that when you turn the ignition on, the speedo and rev counter dials do a…
Ever since I found you could get little SMD jumpers (zero ohm resistors) it’s made laying complicated circuits on single-sided circuit boards much easier. Normally if you need a signal…
A friend found a stack of discarded LED assemblies in a skip, and threw them my way. Amongst the other bits, there were several Dialight Lumiled strips – nicely machined…
I’ve had lots of questions from friends about how to set up their own emergency solar system, so that if there’s a power cut / apocalypse / etc they’ll still…