Homemade Magic Makes the Metcal Go
First soldering irons are often of the Radioshack or Maplin firestarter variety. They’re basically wall power shorted across a nichrome heater or similar with some inline resistance to make it harder...
View ArticleBringing an iPod to the Modern NAND Era
Flash storage was a pretty big deal back in the mid ’00s, although the storage sizes that were available at the time seem laughable by today’s standards. For example, having an iPod that didn’t have a...
View ArticleLogitech Joystick Gets a Mechanical Sidekick
The mechanical keyboard rabbit hole is a deep one, and can swallow up as much money and time as you want to spend. If you’ve become spoiled on the touch and responsiveness of a Cherry MX or other...
View ArticleBurned out SKR E3 Mini Gets New Stepper Driver
It didn’t take long to figure out that a dead X axis and an message saying “TMC CONNECTION ERROR” meant that one of the stepper drivers on the SKR E3 Mini 3D printer control board had released the...
View ArticleVintage HP-25 Calculator Gets Wireless Charging
[Jan Rychter] really likes his multiple HP-25C calculators, but the original battery pack design is crude and outdated. No problem — he whips up a replacement using Fusion 360 to design an enclosure,...
View ArticleOld Prius Gets Upgraded Batteries
So many of the batteries made today are lithium batteries of some sort, from mobile phones, laptops, and drones to electric cars and grid storage solutions. But this technology is relatively new; even...
View ArticleReplacement PCB Replicates Early 80s Modem
It’s certainly been a few decades, but plenty of us remember a time before widespread access to broadband internet, when connections were generally made over phone lines using acoustic modems. In the...
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