Hackaday Podcast Ep 324: Ribbon Microphone From A Gumstick, Texture From a Virtual Log, and a Robot Arm From PVC
Jun 7, 2025
Discover the latest breakthroughs in adaptive optics, capturing stunning images of the sun. Uncover the ingenious Raspberry Pi hack that keeps mischievous cats from bringing home live prey. Explore a DIY ribbon microphone crafted from everyday items, and delve into advanced 3D printing techniques that enhance the strength and customization of designs. Plus, learn about a 6-DOF robotic arm project and the decline of Blackberry keyboards. Join in on the fun with a sound guessing game that tests listeners' sonar tech knowledge!
AI Snips
Chapters
Transcript
Episode notes
Adaptive Optics Reveal Sun's Secrets
- Adaptive optics significantly enhance terrestrial telescopes to capture clearer images of the sun.
- Observations like spikier plasma spikes reveal new solar physics insights yet to be understood.
DIY 6-DOF Robot Arm
- Leo Goldstein built a mostly 3D printed 6-DOF robotic arm with PVC pipe arms for strength and lightness.
- It uses 3D printer control software and Python for advanced motion planning and smooth operation.
Cat Airlock Keeps Mice Out
- R. Kramer built a cat airlock system to prevent his cat from bringing live mice indoors at night.
- An IR sensor and motor-operated sliding door lock the cat out until morning for inspection.