Ep 307: CNC Tattoos, The Big Chill in Space, and PCB Things
Feb 7, 2025
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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.
The podcast discusses the innovative modification of a 3D printer into an automated tattooing device, blending technology and art.
A unique PCB panel creation enhances the assembly process for DIY enthusiasts, demonstrating practical applications for simplifying manual soldering tasks.
The Buffalo S2 utility bike introduces a groundbreaking gear-shifting mechanism that enhances reliability and durability for utility-focused riding.
Deep dives
Impact of Tariff Changes on Packages from China
Recent uncertainty surrounding the importation of packages from China has raised concerns among consumers. The U.S. Post Office briefly announced a halt on accepting these packages due to tariff collection issues, only to retract that decision shortly thereafter. This has sparked discussions on the feasibility and cost-effectiveness of collecting tariffs on an estimated 30 million packages arriving daily. The logistics of implementing such a system and the impact on small-value items highlight the challenges faced in global trade.
Innovative Uses of 3D Printers: Automated Tattoo Gun
An engineer creatively demonstrated how a 3D printer can be repurposed to create an automated tattooing device. By modifying a 3D printer to accommodate a tattoo gun, the engineer showcased the potential of printers for unconventional applications. Though the idea seems daring, particularly when testing it on human skin, the project integrates both entertainment and experimentation. This initiative raises interesting questions about the boundaries of technology and art, as well as safety in DIY medical applications.
Exploring the Tanmatsu Hackers' Conference Badge
The Tanmatsu badge, designed for a Dutch hacker camp, merges aesthetics with complex engineering by incorporating a custom keyboard and a computer system running Linux. This badge deviates from typical conference accoutrements, offering enhanced functionality with its integrated LoRa radio. Despite lacking a dominant player in the market for such devices, the Tanmatsu represents the creativity and innovation prevalent in hacker culture. Its unique design illustrates the blending of art and technology, appealing strongly to those in the maker community.
Custom PCB Templates for Improved Part Placement
A tech enthusiast devised a clever solution by creating a customized PCB panel to assist in accurately placing components during assembly. This approach simplifies the manual soldering process by serving as a template for SMD ribbon cable connectors, allowing better alignment without needing extensive manual work. The affordable nature of producing PCBs today makes this method practical for DIY enthusiasts. By leveraging existing Gerber files, makers can enhance their assembly workflow while ensuring precision.
Redundant Bicycle Design for Increased Reliability
The Buffalo S2 utility bike showcases an innovative design feature that enhances reliability by integrating two separate chains for shifting gears. This unique mechanism allows riders to backpedal to switch between gears, providing a robust solution for transporting heavy loads in areas with limited infrastructure. The design prioritizes durability in challenging conditions, addressing common pitfalls associated with standard bike gear systems. This ambitious approach represents a significant advancement in bicycle engineering aimed at improving utility in demanding environments.
The answer is: Elliot Williams, Al Williams, and a dozen or so great hacks. The question? What do you get this week on the Hackaday podcast? This week's hacks ran from smart ring hacking, to computerized tattoos. Keyboards, PCBs, and bicycles all make appearances, too.
Be sure to try to guess the "What's that sound?" You could score a cool Hackaday Podcast T.
For the can't miss this week, Hackaday talks about how to dispose of the body in outer space and when setting your ship's clock involved watching a ball drop.
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