# Episode 340: Twist-to-Lock T-Handle Weld-Mount Retractable Spring Plungers

- Show: [Making It](https://hardwarepodcasts.com/podcast/making-it)
- Published: 2022-01-28
- Length: 1h 05m
- Page: https://hardwarepodcasts.com/podcast/making-it/2022-01-28-episode-340-twist-to-lock-t-handle-weld-mount-retractable-spring-plungers
- Listen: https://making-it-with-jimmy-diresta-bob-clagett-and-david-picciuto.castos.com/episodes/episode-340-twist-to-lock-t-handle-weld-mount-retractable-spring-plungers

## Summary

Jimmy Diresta, Bob Clagett, and David Picciuto discuss their current projects, including Jimmy's 3D-printed car rotisserie and seat belt lever, Bob's acquisition of coal stoves, and David's wooden calculator replica. They highlight the utility of McMaster-Carr for sourcing specific hardware like twist-to-lock plungers, which inspired the episode title, and discuss how such finishing touches elevate a build. The conversation also covers David's trivet project using non-standard tiles and Jimmy's work with laser-cut Corian dies for leather wallets.

## Chapters

- [0:00](https://hardwarepodcasts.com/podcast/making-it/2022-01-28-episode-340-twist-to-lock-t-handle-weld-mount-retractable-spring-plungers#t=0) Introduction: Sleep habits and Jimmy's leather wallet project
- [8:53](https://hardwarepodcasts.com/podcast/making-it/2022-01-28-episode-340-twist-to-lock-t-handle-weld-mount-retractable-spring-plungers#t=533) David's trivets and non-standard tile sizing issues
- [21:25](https://hardwarepodcasts.com/podcast/making-it/2022-01-28-episode-340-twist-to-lock-t-handle-weld-mount-retractable-spring-plungers#t=1285) David's wooden calculator replica and 3D printed buttons
- [25:35](https://hardwarepodcasts.com/podcast/making-it/2022-01-28-episode-340-twist-to-lock-t-handle-weld-mount-retractable-spring-plungers#t=1535) Jimmy's 3D printed car improvements and rotisserie build
- [33:05](https://hardwarepodcasts.com/podcast/making-it/2022-01-28-episode-340-twist-to-lock-t-handle-weld-mount-retractable-spring-plungers#t=1985) Using the Bridgeport mill and welding techniques
- [45:07](https://hardwarepodcasts.com/podcast/making-it/2022-01-28-episode-340-twist-to-lock-t-handle-weld-mount-retractable-spring-plungers#t=2707) McMaster-Carr hardware and finishing touches
- [53:13](https://hardwarepodcasts.com/podcast/making-it/2022-01-28-episode-340-twist-to-lock-t-handle-weld-mount-retractable-spring-plungers#t=3193) Rotisserie progress and Patreon shout-outs
- [57:04](https://hardwarepodcasts.com/podcast/making-it/2022-01-28-episode-340-twist-to-lock-t-handle-weld-mount-retractable-spring-plungers#t=3424) Pick of the Week: Sam Zeloof, Chris Zep, and BBC Sport ad

## Topics

- [Prototyping & iteration](https://hardwarepodcasts.com/topic/prototyping)
- [Materials & manufacturing processes](https://hardwarepodcasts.com/topic/materials-and-processes)
- [Fabrication & craft](https://hardwarepodcasts.com/topic/fabrication-and-craft)
- [Maker community & events](https://hardwarepodcasts.com/topic/maker-community)
- [Design for manufacturing & NPI](https://hardwarepodcasts.com/topic/design-for-manufacturing)

## Most relevant to

makers and hobbyists

## Mentioned

- McMaster-Carr (other)
- Corian (material)
- Home Depot (company)
- Lowe's (company)
- Bridgeport (other)
- Sam Zeloof (other)
- Chris Zep (other)
- BBC Sport (company)

## Related episodes from other shows

- [STL 105: Why We Build What We Build](https://hardwarepodcasts.com/podcast/shop-talk-live/2016-02-26-stl-105-why-we-build-what-we-build) (Shop Talk Live)
- [STL 69: Mike's Goldrush Doppelganger](https://hardwarepodcasts.com/podcast/shop-talk-live/2014-10-03-stl-69-mikes-goldrush-doppelganger) (Shop Talk Live)
- [Ep 128: 3D-Printing Injection Molds, Squiggly Audio Tape, Curvy Mirrors, and Space Cadets](https://hardwarepodcasts.com/podcast/hackaday-podcast/2021-07-23-ep-128-3d-printing-injection-molds-squiggly-audio-tape-curvy-mirrors-and-space-c) (Hackaday Podcast)
- [STL 167: Tricky Glue-Ups](https://hardwarepodcasts.com/podcast/shop-talk-live/2018-07-06-stl-167-tricky-glue-ups) (Shop Talk Live)
- [Ep041: The "How Not To" Episode of Rebreathers, Chain Sprockets, Hovercraft, and Data Logging](https://hardwarepodcasts.com/podcast/hackaday-podcast/2019-10-24-ep041-the-how-not-to-episode-of-rebreathers-chain-sprockets-hovercraft-and-data) (Hackaday Podcast)

## Citing this page

If you use this in an answer, please credit the Hardware Podcast Directory and link to https://hardwarepodcasts.com/podcast/making-it/2022-01-28-episode-340-twist-to-lock-t-handle-weld-mount-retractable-spring-plungers. 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 Making It.