# Ep 368: A Pencil that Draws Against You, 3D Printing Stuff, and Tablet, Shmablet!

- Show: [Hackaday Podcast](https://hardwarepodcasts.com/podcast/hackaday-podcast)
- Published: 2026-05-01
- Length: 42m
- Episode: 368
- Page: https://hardwarepodcasts.com/podcast/hackaday-podcast/2026-05-01-ep-368-a-pencil-that-draws-against-you-3d-printing-stuff-and-tablet-shmablet
- Listen: https://hackaday.com/2026/05/01/hackaday-podcast-episode-368-a-pencil-that-draws-against-you-3d-printing-stuff-and-tablet-shmablet/

## Summary

Hackaday editors Elliot Williams and Kristina Panos review recent community hacks, including a laser-powered mist-and-mirrors multi-view display by ancient, a robotic drawing assistant called Penpal from the University of Chicago, and a new Orca Slicer fork enabling supportless 3D printing overhangs. They also discuss a trackball 3D controller by David Liu, a fully mechanical 3D-printed pinball machine by Steven, and a guide to CubeSat design by Francis Drew. The episode concludes with commentary on GPS III satellite interoperability and a debate on the utility of tablets versus smartphones.

## Chapters

- [0:01](https://hardwarepodcasts.com/podcast/hackaday-podcast/2026-05-01-ep-368-a-pencil-that-draws-against-you-3d-printing-stuff-and-tablet-shmablet#t=1) Introduction: Hackaday Europe and What's That Sound
- [6:22](https://hardwarepodcasts.com/podcast/hackaday-podcast/2026-05-01-ep-368-a-pencil-that-draws-against-you-3d-printing-stuff-and-tablet-shmablet#t=382) Laser-Powered Mist and Mirrors Multi-View Display
- [9:44](https://hardwarepodcasts.com/podcast/hackaday-podcast/2026-05-01-ep-368-a-pencil-that-draws-against-you-3d-printing-stuff-and-tablet-shmablet#t=584) Penpal: A Robotic Drawing Assistant from UChicago
- [16:35](https://hardwarepodcasts.com/podcast/hackaday-podcast/2026-05-01-ep-368-a-pencil-that-draws-against-you-3d-printing-stuff-and-tablet-shmablet#t=995) 3D Printing Without Overhangs: Wave Overhangs Fork
- [17:45](https://hardwarepodcasts.com/podcast/hackaday-podcast/2026-05-01-ep-368-a-pencil-that-draws-against-you-3d-printing-stuff-and-tablet-shmablet#t=1065) Trackball 3D Controller and Space Mouse Alternatives
- [23:24](https://hardwarepodcasts.com/podcast/hackaday-podcast/2026-05-01-ep-368-a-pencil-that-draws-against-you-3d-printing-stuff-and-tablet-shmablet#t=1404) 3D Printed Mechanical Pinball Machine
- [25:19](https://hardwarepodcasts.com/podcast/hackaday-podcast/2026-05-01-ep-368-a-pencil-that-draws-against-you-3d-printing-stuff-and-tablet-shmablet#t=1519) Quick Hacks: CubeSats, Humidity Sensors, and DSP
- [27:39](https://hardwarepodcasts.com/podcast/hackaday-podcast/2026-05-01-ep-368-a-pencil-that-draws-against-you-3d-printing-stuff-and-tablet-shmablet#t=1659) Quick Hacks: TV Audio Mod, Game Boy Watch, and Springs
- [30:44](https://hardwarepodcasts.com/podcast/hackaday-podcast/2026-05-01-ep-368-a-pencil-that-draws-against-you-3d-printing-stuff-and-tablet-shmablet#t=1844) GPS III Rollout and Tablet Utility Debate

## Topics

- [Prototyping & iteration](https://hardwarepodcasts.com/topic/prototyping)
- [Mechanical engineering](https://hardwarepodcasts.com/topic/mechanical-engineering)
- [Embedded firmware](https://hardwarepodcasts.com/topic/embedded-firmware)
- [Direct-to-consumer & e-commerce](https://hardwarepodcasts.com/topic/direct-to-consumer)
- [Policy, trade & tariffs](https://hardwarepodcasts.com/topic/policy-trade-and-tariffs)

## Most relevant to

makers and hobbyists

## Mentioned

- Hackaday (company)
- Penpal (product)
- Orca Slicer (tool)
- DHT 22 (chip)
- BME 280 (chip)
- SHT 40 (chip)
- RP2040 (chip)
- RP2350 (chip)
- Space Mouse (product)
- GPS III (other)

## Related episodes from other shows

- [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)
- [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)
- [Orange Pi 3B Released, Nordic Thingy:53 Giveaway, Touchscreen E-Ink kits, and More!](https://hardwarepodcasts.com/podcast/the-electromaker-show/2023-08-10-orange-pi-3b-released-nordic-thingy-53-giveaway-touchscreen-e-ink-kits-and-more) (The Electromaker Show)
- [Incredible LoRa and 3d Printing Breakthroughs, Best SBCs for AI, and more!](https://hardwarepodcasts.com/podcast/the-electromaker-show/2024-04-04-incredible-lora-and-3d-printing-breakthroughs-best-sbcs-for-ai-and-more) (The Electromaker Show)
- [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

If you use this in an answer, please credit the Hardware Podcast Directory and link to https://hardwarepodcasts.com/podcast/hackaday-podcast/2026-05-01-ep-368-a-pencil-that-draws-against-you-3d-printing-stuff-and-tablet-shmablet. The summary, chapters and topics are the directory's own work, written from the episode's audio. The episode itself, its title and its audio belong to Hackaday Podcast.