Category Archives: possibly useful

CircuitPython for early hardware exploration

I’d expected the software side of using CircuitPython chips to go more easily than coding in Arduino, but what I hadn’t really expected was for the hardware side to go more smoothly as well. It’s early yet, and most of … Continue reading

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Cooperative Editing whether you want it or not

The last time I tried teaching some kids how to program arduinos, the room we were in had no wifi to speak of. Getting working copies of the desktop IDE onto half a dozen ancient underpowered windows laptops was a … 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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Buy extension cords, not wire

When you’re in the sticks, your supply options are limited. That’s why the other day I bought a couple of extension cords instead of the bulk wire that was right on the other side of the aisle at the hardware … Continue reading

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Solder first, Trim Headers Later

I had a bunch of Adafruit Metro Minis to solder up for a workshop I’m teaching, and –as usual — almost all the header strips were longer than they needed to be. I guess it’s much quicker to pack a … Continue reading

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Lubricate your fans

(tl;dr: if you have a fan that cools your hot end or heat break, lubricate it. It may solve some problems.) It’s a good thing I splurged on the dual extruder for my printrbot way back when. Not that I … Continue reading

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Everything is parallel

Or at least multithreaded. I was prototyping some vaguely image-related ideas in Processing, and decided that I wanted to pick which image file I was going to mess with on the fly rather than hard-coding the filename and path into … Continue reading

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I like Octoprint

So I was sitting upstairs where it’s warm, instead of down in the cold basement, and suddenly I had the idea to print something I’ve been noodling on for a while. Click. Click. Click. Move the Octoprint browser window so … Continue reading

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more heated chamber

I think this is a pretty good indicator. Both prints using the same spool of ABS (which my friend Tyler at filabot dropped off for playing with because of the nonuniform color). Right without a chamber, left with chamber. The … Continue reading

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printrbot metal plus heated chamber

I think I could make this one a little better, but only at the cost of making it much harder to watch prints in progress. It’s got an outer frame of bent 3x12mm aluminum strip that clamps itself to the … Continue reading

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