Hackaday Podcast Ep 307: CNC Tattoos, The Big Chill in Space, and PCB Things
Feb 7, 2025
This week dives into fascinating tech like reverse-engineered smart rings and the quirky idea of a 3D printer doubling as a tattoo gun. It also explores the unique engineering behind the Buffalo S2 utility bike and innovative PCB assembly techniques. A thought-provoking discussion on handling astronaut fatalities in space uncovers shocking protocol gaps. Plus, a nostalgic look at historical timekeeping methods brings an unexpected twist to the conversation, showcasing the blend of creativity and engineering in today's tech landscape.
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USPS and China Tariffs
- The U.S. Post Office briefly stopped accepting packages from China due to new tariffs.
- They quickly reversed the decision but are now figuring out how to collect the tariffs on the estimated 30 million daily packages.
Import Exemptions
- Elliot Williams, living in Germany, is surprised by the high de minimis exemption for imports in Europe (€23).
- This contrasts with the US, where even small packages can be subject to customs.
Hacking the SR08 Smart Ring
- Aaron Christofel successfully hacked the SR08 smart ring by obtaining the official dev kit.
- Despite the ring having more memory, he adapted the firmware and now can upload custom code via a cell phone app.