# Ep 338: Smoothing 3D Prints, Reading CNC Joints, and Detecting Spicy Shrimp

- Show: [Hackaday Podcast](https://hardwarepodcasts.com/podcast/hackaday-podcast)
- Published: 2025-09-19
- Length: 55m
- Episode: 338
- Page: https://hardwarepodcasts.com/podcast/hackaday-podcast/2025-09-19-ep-338-smoothing-3d-prints-reading-cnc-joints-and-detecting-spicy-shrimp
- Listen: https://hackaday.com/2025/09/19/hackaday-podcast-episode-338-smoothing-3d-prints-reading-cnc-joints-and-detecting-spicy-shrimp/

## Summary

Hosts Elliot Williams and Kristina Panos review recent hacks, including 10tech's non-planar 3D print smoothing using a heated ball probe, and Lucas Tusks' reverse engineering of a PAX credit card machine involving Mega Hunt MH1903 chips. They also discuss Kobe Unger's CNC joinery using the Gorton font, Ken Shirriff's bare-metal AI on a 1984 Macintosh, and Maya Posch's analysis of radioactive shrimp. The episode covers the history of email, the closure of American Science & Surplus, and the 2025 Component Abuse Challenge.

## Chapters

- [0:01](https://hardwarepodcasts.com/podcast/hackaday-podcast/2025-09-19-ep-338-smoothing-3d-prints-reading-cnc-joints-and-detecting-spicy-shrimp#t=1) Introduction: Hackaday News and Component Abuse Challenge
- [3:24](https://hardwarepodcasts.com/podcast/hackaday-podcast/2025-09-19-ep-338-smoothing-3d-prints-reading-cnc-joints-and-detecting-spicy-shrimp#t=204) American Science & Surplus Closing and Surplus Store Commentary
- [6:27](https://hardwarepodcasts.com/podcast/hackaday-podcast/2025-09-19-ep-338-smoothing-3d-prints-reading-cnc-joints-and-detecting-spicy-shrimp#t=387) What's That Sound: Beakman's World Theme Music
- [10:02](https://hardwarepodcasts.com/podcast/hackaday-podcast/2025-09-19-ep-338-smoothing-3d-prints-reading-cnc-joints-and-detecting-spicy-shrimp#t=602) Non-Planar 3D Print Smoothing with Heated Ball Probe
- [15:24](https://hardwarepodcasts.com/podcast/hackaday-podcast/2025-09-19-ep-338-smoothing-3d-prints-reading-cnc-joints-and-detecting-spicy-shrimp#t=924) Robot Typewriter Mouth and PAX Credit Card Machine Hacking
- [22:55](https://hardwarepodcasts.com/podcast/hackaday-podcast/2025-09-19-ep-338-smoothing-3d-prints-reading-cnc-joints-and-detecting-spicy-shrimp#t=1375) CNC Joinery Using Gorton Font and Retro AI on 1984 Macintosh
- [33:16](https://hardwarepodcasts.com/podcast/hackaday-podcast/2025-09-19-ep-338-smoothing-3d-prints-reading-cnc-joints-and-detecting-spicy-shrimp#t=1996) UTF-8 Encoding, Quick Hacks, and Radioactive Shrimp Analysis
- [47:38](https://hardwarepodcasts.com/podcast/hackaday-podcast/2025-09-19-ep-338-smoothing-3d-prints-reading-cnc-joints-and-detecting-spicy-shrimp#t=2858) History of Email and Show Wrap-up

## Topics

- [Prototyping & iteration](https://hardwarepodcasts.com/topic/prototyping)
- [Embedded firmware](https://hardwarepodcasts.com/topic/embedded-firmware)
- [Microcontrollers & dev platforms](https://hardwarepodcasts.com/topic/microcontrollers-and-platforms)
- [Materials & manufacturing processes](https://hardwarepodcasts.com/topic/materials-and-processes)
- [Careers & education](https://hardwarepodcasts.com/topic/engineering-careers-and-education)
- [AI & machine learning](https://hardwarepodcasts.com/topic/ai-and-machine-learning)

## Most relevant to

makers and hobbyists

## Mentioned

- DigiKey (company)
- American Science & Surplus (company)
- PAX (product)
- Mega Hunt (company)
- MH1903 (chip)
- Gorton (other)
- Ken Shirriff (other)
- Maya Posch (other)
- UTF-8 (other)

## Related episodes from other shows

- [Episode 102: CN-Cheese](https://hardwarepodcasts.com/podcast/making-it/2016-12-23-episode-102-cn-cheese) (Making It)
- [Episode 197: The hammerhead alligator](https://hardwarepodcasts.com/podcast/making-it/2019-01-11-episode-197-the-hammerhead-alligator) (Making It)
- [Shop Talk Live 37: SawStop Portable in the Works?](https://hardwarepodcasts.com/podcast/shop-talk-live/2013-07-29-shop-talk-live-37-sawstop-portable-in-the-works) (Shop Talk Live)
- [425: David Picciuto 7th Period](https://hardwarepodcasts.com/podcast/making-it/2024-01-12-425-david-picciuto-7th-period) (Making It)
- [477: The Print Dialog Box](https://hardwarepodcasts.com/podcast/making-it/2025-03-28-477-the-print-dialog-box) (Making It)

## Citing this page

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