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Author Archives: paulwallich
How long do 3D printed parts last?
One data point to add to the world: in a dishwasher that’s used every day, about three years, maybe more. Back in 2020, I fixed the bottom rack of our dishwasher by printing some pegs and new wheels out of … Continue reading
Posted in making, possibly useful, probably boring, Uncategorized
Tagged 3D printing, dishwashers
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I’m going to hell
Pretty much ever since I upgraded to Ubuntu 22.04 (yeah, long term support), the software updater has been crashing. At first I worried, then a search mentioned that it was a known problem and in line for fixing, so I … Continue reading
This is why there are PCB fab services
So the kid decided to teach a soldering workshop at geek camp. Of course that means a custom PCB (and custom firmware, but that’s not my department). Which meant that I finally got to test all those tutorials about etching … Continue reading
The Pin Dance
Don’t get me wrong, I love Circuit Python. Sure, I could get stuff done in the ugly stepchild language that is Arduino, but the niggling details, the mediocre IDE, none of it was my friend. And truth to tell, it’s … Continue reading
Posted in possibly useful, probably boring, things that don't work
Tagged circuitpython, raspberry pi
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In praise of cattle
The 16-year-old, who wants a career somewhere in IT, introduced me a while back to the distinction between pets and cattle. When something goes wrong with your pet, you nurse it back to health. When something goes wrong with one … Continue reading
Pedal Assist: Not What I Thought It Was
It’s been a few years since I started wanting an e-bike, but for a long time I was put off by physics. We live at the top of a steep hill, and I’m fat and out of shape. So all … Continue reading
Osmotic Bubbles
Who knew? Our fancy toilet has been leaking for a while, and at long last I decided to do something about it. Which involved disassembling a bunch of toilet-body parts (remember, fancy), turning off the water and extracting the flush … Continue reading
Posted in probably boring
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Thank you, Electronics Goldmine
I admit it, I have an addiction to things that call themselves bargains. Down in the basement are multiple cubic feet of random electronic and mechanical components that looked like a good idea or might be useful someday or just … Continue reading
Posted in possibly useful, probably boring
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Ok, this is actually useful
And it only took me 9 years to notice. It’s an openscad script for making keyboard feet. Thank you. Not such a big deal at home, but at a school with donated computers of interesting provenance and a couple dozen … Continue reading
Possibly the creepiest Christmas ornament of 2020
Zapped on my glowforge, slightly modified from a design by IconPai at the Noun Project. Every year I take the bottom however many inches have to come off our tree to make it fit the living room ceiling and slice … Continue reading