# Ep 129: Super Clever 3D Printing, Jigs and Registration Things, 90s Car Audio, and Smooth LED Fades

- Show: [Hackaday Podcast](https://hardwarepodcasts.com/podcast/hackaday-podcast)
- Published: 2021-07-30
- Length: 50m
- Episode: 129
- Page: https://hardwarepodcasts.com/podcast/hackaday-podcast/2021-07-30-ep-129-super-clever-3d-printing-jigs-and-registration-things-90s-car-audio-and-s
- Listen: https://hackaday.libsyn.com/ep-129-super-clever-3d-printing-jigs-and-registration-things-90s-car-audio-and-smooth-led-fades

## Summary

Hackaday editors Mike Szczys and Elliot Williams review a week of hardware hacks, highlighting a modified 3D printer used for automated through-hole soldering and a technique to achieve smooth LED fades using WS2811 controllers. They also discuss two distinct quadruped robot designs—one using many servos for complex motion and another using a minimal motor count with a clever mechanical linkage—and a server rack packed with multiple Raspberry Pi 4s. The episode concludes with historical commentary on 1919 transatlantic flying boats and a guide to adding Bluetooth audio to vintage 90s car stereos.

## Chapters

- [0:02](https://hardwarepodcasts.com/podcast/hackaday-podcast/2021-07-30-ep-129-super-clever-3d-printing-jigs-and-registration-things-90s-car-audio-and-s#t=2) Introduction: Hackaday Podcast Episode 129
- [1:09](https://hardwarepodcasts.com/podcast/hackaday-podcast/2021-07-30-ep-129-super-clever-3d-printing-jigs-and-registration-things-90s-car-audio-and-s#t=69) FTC Right to Repair Report and Audacity Privacy Policy
- [8:22](https://hardwarepodcasts.com/podcast/hackaday-podcast/2021-07-30-ep-129-super-clever-3d-printing-jigs-and-registration-things-90s-car-audio-and-s#t=502) 3D Printer Modified for Automated Through-Hole Soldering
- [14:25](https://hardwarepodcasts.com/podcast/hackaday-podcast/2021-07-30-ep-129-super-clever-3d-printing-jigs-and-registration-things-90s-car-audio-and-s#t=865) WS2811 LED Fade Trick and Raspberry Pi Server Rack
- [23:52](https://hardwarepodcasts.com/podcast/hackaday-podcast/2021-07-30-ep-129-super-clever-3d-printing-jigs-and-registration-things-90s-car-audio-and-s#t=1432) Hybrid 3D Printed Mechanisms and Model Roller Coaster
- [29:19](https://hardwarepodcasts.com/podcast/hackaday-podcast/2021-07-30-ep-129-super-clever-3d-printing-jigs-and-registration-things-90s-car-audio-and-s#t=1759) Quadruped Robots: Technovations and Tardy Grade Walker
- [35:35](https://hardwarepodcasts.com/podcast/hackaday-podcast/2021-07-30-ep-129-super-clever-3d-printing-jigs-and-registration-things-90s-car-audio-and-s#t=2135) Quick Hacks: Coffee Automation, Pole Climbers, and PCB Assist
- [39:49](https://hardwarepodcasts.com/podcast/hackaday-podcast/2021-07-30-ep-129-super-clever-3d-printing-jigs-and-registration-things-90s-car-audio-and-s#t=2389) 1919 Transatlantic Flying Boats and 90s Car Audio Mods

## Topics

- [Prototyping & iteration](https://hardwarepodcasts.com/topic/prototyping)
- [PCB design & layout](https://hardwarepodcasts.com/topic/pcb-design)
- [Mechanical engineering](https://hardwarepodcasts.com/topic/mechanical-engineering)
- [Analog & power electronics](https://hardwarepodcasts.com/topic/analog-and-power-electronics)
- [Microcontrollers & dev platforms](https://hardwarepodcasts.com/topic/microcontrollers-and-platforms)
- [Materials & manufacturing processes](https://hardwarepodcasts.com/topic/materials-and-processes)

## Most relevant to

makers and hobbyists

## Mentioned

- FTC (other)
- Audacity (other)
- Muse (company)
- John Deere (company)
- Apple (company)
- WS2811 (chip)
- Raspberry Pi (chip)
- Arduino (other)
- Lego (other)

## 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)
- [3D Printed Shark Jumps - Edifying Edison's Energy](https://hardwarepodcasts.com/podcast/the-amp-hour/2014-09-24-3d-printed-shark-jumps-edifying-edisons-energy) (The Amp Hour)
- [142: New and Improved Appendages (Repeat)](https://hardwarepodcasts.com/podcast/embedded-fm/2021-05-20-142-new-and-improved-appendages-repeat) (Embedded.fm)
- [142: New And Improved Appendages](https://hardwarepodcasts.com/podcast/embedded-fm/2016-03-10-142-new-and-improved-appendages) (Embedded.fm)
- [Hacked E-Paper Price Tags, Raspberry Pi MCU Dev HAT, Arduino Robot Arm, and More!](https://hardwarepodcasts.com/podcast/the-electromaker-show/2023-01-18-hacked-e-paper-price-tags-raspberry-pi-mcu-dev-hat-arduino-robot-arm-and-more) (The Electromaker Show)

## Citing this page

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