Category Archives: toys

Let There Be Light

I remixed an old openscad christmas tree design to include space for a coin cell and an LED. Coincidentally I have a bunch of green LEDs lying around — their light gets through the plastic a lot better than the … Continue reading

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Glowforge!

My laser cutter arrived a few weeks ago. It’s pretty cool. Partly because I’ve been anticipating it for the better (worse?) part of two years, but mostly because it’s just there. I’ve used a laser cutter before, and this was … Continue reading

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A child of the 80s

Sometimes I wonder if the 11-year-old is too retro. His current hobby is playing an emulated version of Street Fighter 2 on his PC. And now that a vintage-gaming store has opened in the next town over, he pretty much … Continue reading

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cleaning out the basement one bright idea at a time

When we were making new year’s resolutions last month, mine was to, y’know, build some of the cool kits and kit-like part collections I’ve acquired over the years. First up: Solarbotics marble machine. Cute, simple, less than an hour build … Continue reading

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Pinbox 3000!

Arrived just in time for the 11-year-old’s birthday. Delightful. He’s been wanting one of his own ever since he got to play with some of the early prototypes. Takes about an hour and a half for a kid to build … Continue reading

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True North

Well, except for declination error and any nearby metal objects, and within the resolution of the stepper motor… Ingredients: Adafruit 9-degree-of-freedom accelerometer/gyro/magnetometer, wired through a slip ring to an Arduino clone with lots of spare 5-volt power, driving one of … Continue reading

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The Roombaphone

It might not be the most over-engineered way to make low-quality 8-bit sounds ever, but I think it’s in the running. This is what comes of allowing a 10-year-old access to the basement. My mother-in-law got a Roomba for christmas … Continue reading

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