# Ep 336: DIY Datasette, Egg Cracking Machine, and Screwing 3D Prints

- Show: [Hackaday Podcast](https://hardwarepodcasts.com/podcast/hackaday-podcast)
- Published: 2025-09-05
- Length: 1h 03m
- Episode: 336
- Page: https://hardwarepodcasts.com/podcast/hackaday-podcast/2025-09-05-ep-336-diy-datasette-egg-cracking-machine-and-screwing-3d-prints
- Listen: https://hackaday.com/2025/09/05/hackaday-podcast-episode-336-diy-datasette-egg-cracking-machine-and-screwing-3d-prints/

## Summary

Elliot Williams and Jenny List discuss a DIY datasette by Bitlooney that uses a microcassette mechanism and custom DSP to interface with a Commodore 64, and an over-engineered egg cracking machine by Stuff Made Here that uses silicone cups and pneumatic release. They also review a polished lightning talk timer with a gravity-actuated bell and a generative art project by Nicholas Roy using line-following plotter bots. The episode concludes with a Field Guide on pivot irrigation and a discussion on using self-tapping screws for 3D printed assemblies.

## Chapters

- [0:01](https://hardwarepodcasts.com/podcast/hackaday-podcast/2025-09-05-ep-336-diy-datasette-egg-cracking-machine-and-screwing-3d-prints#t=1) Introduction: Microphone holders and rubber bands
- [4:54](https://hardwarepodcasts.com/podcast/hackaday-podcast/2025-09-05-ep-336-diy-datasette-egg-cracking-machine-and-screwing-3d-prints#t=294) Sound Reveal: 2001: A Space Odyssey music
- [9:22](https://hardwarepodcasts.com/podcast/hackaday-podcast/2025-09-05-ep-336-diy-datasette-egg-cracking-machine-and-screwing-3d-prints#t=562) Bitlooney's DIY Datasette for Commodore 64
- [19:00](https://hardwarepodcasts.com/podcast/hackaday-podcast/2025-09-05-ep-336-diy-datasette-egg-cracking-machine-and-screwing-3d-prints#t=1140) Prusa Upgrade vs. New Printer Discussion
- [24:57](https://hardwarepodcasts.com/podcast/hackaday-podcast/2025-09-05-ep-336-diy-datasette-egg-cracking-machine-and-screwing-3d-prints#t=1497) Lightning Talk Timer with Gravity Bell
- [30:12](https://hardwarepodcasts.com/podcast/hackaday-podcast/2025-09-05-ep-336-diy-datasette-egg-cracking-machine-and-screwing-3d-prints#t=1812) Stuff Made Here's Egg Cracking Machine
- [33:00](https://hardwarepodcasts.com/podcast/hackaday-podcast/2025-09-05-ep-336-diy-datasette-egg-cracking-machine-and-screwing-3d-prints#t=1980) Nicholas Roy's Line-Following Art Bots
- [42:01](https://hardwarepodcasts.com/podcast/hackaday-podcast/2025-09-05-ep-336-diy-datasette-egg-cracking-machine-and-screwing-3d-prints#t=2521) Amiga Demo Scene Challenge: No CPU
- [45:16](https://hardwarepodcasts.com/podcast/hackaday-podcast/2025-09-05-ep-336-diy-datasette-egg-cracking-machine-and-screwing-3d-prints#t=2716) Quick Hacks: QWERTY Phone and Robotic Canoe
- [51:24](https://hardwarepodcasts.com/podcast/hackaday-podcast/2025-09-05-ep-336-diy-datasette-egg-cracking-machine-and-screwing-3d-prints#t=3084) Screwing 3D Prints and Pivot Irrigation

## Topics

- [PCB design & layout](https://hardwarepodcasts.com/topic/pcb-design)
- [Mechanical engineering](https://hardwarepodcasts.com/topic/mechanical-engineering)
- [Robotics & autonomy](https://hardwarepodcasts.com/topic/robotics-and-autonomy)
- [Chips, FPGAs & semiconductors](https://hardwarepodcasts.com/topic/chips-and-fpgas)
- [Materials & manufacturing processes](https://hardwarepodcasts.com/topic/materials-and-processes)
- [Energy & climate tech](https://hardwarepodcasts.com/topic/energy-and-climate-tech)

## Most relevant to

makers and hobbyists

## Mentioned

- Bitlooney (other)
- Commodore 64 (product)
- Stuff Made Here (other)
- Nicholas Roy (other)
- Amiga (product)
- Prusa (product)

## Related episodes from other shows

- [Episode 155: Brain tornado-ing and pretzels](https://hardwarepodcasts.com/podcast/making-it/2018-02-09-episode-155-brain-tornado-ing-and-pretzels) (Making It)
- [507: Turn Our Data Into Predators](https://hardwarepodcasts.com/podcast/embedded-fm/2025-08-07-507-turn-our-data-into-predators) (Embedded.fm)
- [474: The Doublemint Gum Remote Control](https://hardwarepodcasts.com/podcast/making-it/2025-03-07-474-the-doublemint-gum-remote-control) (Making It)
- [Giant Lego 3D Printing, Self Soldering PCBs, new ESP32 C6 modules, and more!](https://hardwarepodcasts.com/podcast/the-electromaker-show/2023-01-26-giant-lego-3d-printing-self-soldering-pcbs-new-esp32-c6-modules-and-more) (The Electromaker Show)
- [355: Favorite Ways to Make Noises](https://hardwarepodcasts.com/podcast/embedded-fm/2020-12-11-355-favorite-ways-to-make-noises) (Embedded.fm)

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