# Ep081: Mask-apult, Beef Tallow, Grinding Melted Plastic, and Stretching Flowing Metal

- Show: [Hackaday Podcast](https://hardwarepodcasts.com/podcast/hackaday-podcast)
- Published: 2020-08-20
- Length: 54m
- Page: https://hardwarepodcasts.com/podcast/hackaday-podcast/2020-08-20-ep081-mask-apult-beef-tallow-grinding-melted-plastic-and-stretching-flowing-meta
- Listen: https://hackaday.libsyn.com/ep081-mask-apult-beef-tallow-grinding-melted-plastic-and-stretching-flowing-metal

## Summary

Hackaday editors Mike Szczys and Tom Nardi review a week of hardware hacks, including Alan Pan's CO2-powered 'Mask-apult' and a subtractive 3D printing technique that mills plastic layers as they print. They discuss an autonomous lawnmower using RTK GPS for centimeter-level accuracy, a reverse-engineered Linux driver for a PC water cooling system, and a hand-built micro-RC car. The episode concludes with deep dives into 1840s atmospheric railways and the complex engineering of aluminum extrusion.

## Chapters

- [0:00](https://hardwarepodcasts.com/podcast/hackaday-podcast/2020-08-20-ep081-mask-apult-beef-tallow-grinding-melted-plastic-and-stretching-flowing-meta#t=0) Introduction: Mike Szczys and Tom Nardi
- [3:36](https://hardwarepodcasts.com/podcast/hackaday-podcast/2020-08-20-ep081-mask-apult-beef-tallow-grinding-melted-plastic-and-stretching-flowing-meta#t=216) Circuit Sculpture Challenge 2020
- [6:41](https://hardwarepodcasts.com/podcast/hackaday-podcast/2020-08-20-ep081-mask-apult-beef-tallow-grinding-melted-plastic-and-stretching-flowing-meta#t=401) Alan Pan's Mask-apult and Sourcing Parts
- [11:04](https://hardwarepodcasts.com/podcast/hackaday-podcast/2020-08-20-ep081-mask-apult-beef-tallow-grinding-melted-plastic-and-stretching-flowing-meta#t=664) Subtractive 3D Printing and Milling
- [16:45](https://hardwarepodcasts.com/podcast/hackaday-podcast/2020-08-20-ep081-mask-apult-beef-tallow-grinding-melted-plastic-and-stretching-flowing-meta#t=1005) RTK GPS Autonomous Lawnmower
- [22:52](https://hardwarepodcasts.com/podcast/hackaday-podcast/2020-08-20-ep081-mask-apult-beef-tallow-grinding-melted-plastic-and-stretching-flowing-meta#t=1372) Reverse Engineering PC Water Cooling with Wireshark
- [29:14](https://hardwarepodcasts.com/podcast/hackaday-podcast/2020-08-20-ep081-mask-apult-beef-tallow-grinding-melted-plastic-and-stretching-flowing-meta#t=1754) Diorama 111's Micro-RC Car and Custom Keycaps
- [40:43](https://hardwarepodcasts.com/podcast/hackaday-podcast/2020-08-20-ep081-mask-apult-beef-tallow-grinding-melted-plastic-and-stretching-flowing-meta#t=2443) Quick Hacks: POV Clock, Coffee Maker, and Pick 32 DMA
- [43:09](https://hardwarepodcasts.com/podcast/hackaday-podcast/2020-08-20-ep081-mask-apult-beef-tallow-grinding-melted-plastic-and-stretching-flowing-meta#t=2589) Atmospheric Railway and Aluminum Extrusion

## Topics

- [Mechanical engineering](https://hardwarepodcasts.com/topic/mechanical-engineering)
- [Wireless & RF](https://hardwarepodcasts.com/topic/wireless-and-rf)
- [Debugging & failure analysis](https://hardwarepodcasts.com/topic/debugging-and-failure-analysis)
- [Prototyping & iteration](https://hardwarepodcasts.com/topic/prototyping)
- [Embedded firmware](https://hardwarepodcasts.com/topic/embedded-firmware)
- [Materials & manufacturing processes](https://hardwarepodcasts.com/topic/materials-and-processes)

## Most relevant to

makers and hobbyists

## Mentioned

- Mask-apult (product)
- RTK GPS (tool)
- Wireshark (tool)
- OpenSCAD (tool)
- Pick 32 DMA (chip)

## Related episodes from other shows

- [Raspberry Pi 500, Robot Roadies, Huge 3d Printers and Car Hacking!](https://hardwarepodcasts.com/podcast/the-electromaker-show/2023-11-26-raspberry-pi-500-robot-roadies-huge-3d-printers-and-car-hacking) (The Electromaker Show)
- [51. Recapping 2021](https://hardwarepodcasts.com/podcast/the-next-byte-podcast/2022-01-05-51-recapping-2021) (The Next Byte Podcast)
- [Space Difficulties and Lost Heroes - Wanzing Workshop Whemmle](https://hardwarepodcasts.com/podcast/the-amp-hour/2014-11-06-space-difficulties-and-lost-heroes-wanzing-workshop-whemmle) (The Amp Hour)
- [12. Ford Trucks Made From Trash, NASA’s Ingenuity Drone, Snake-Inspired Nonslip Shoes](https://hardwarepodcasts.com/podcast/the-next-byte-podcast/2021-04-06-12-ford-trucks-made-from-trash-nasas-ingenuity-drone-snake-inspired-nonslip-shoe) (The Next Byte Podcast)
- [22. How to Turn Gum into Shoes, Reducing CO2 in Construction by 40%, High-Speed Flying Boats](https://hardwarepodcasts.com/podcast/the-next-byte-podcast/2021-06-15-22-how-to-turn-gum-into-shoes-reducing-co2-in-construction-by-40-high-speed-flyi) (The Next Byte Podcast)

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