Everyone has their preferred method of making (and consuming) coffee. While modern coffee makers are starting to come standard with IoT and ‘smart’ capabilities, owners of older models should fear …read more (https://hackaday.com/2021/12/16/add-smarts-to-your-old-capsule-coffee-maker/)

DIY Mechanical Flux Dispenser Syringe Has Fine Control
https://hackaday.com/2021/12/17/diy-mechanical-flux-dispenser-syringe-has-fine-control/

[Perinski]’s design for a mechanical flux dispenser uses some common hardware and a few 3D printed parts to create a syringe with fine control over just how much of the …read more (https://hackaday.com/2021/12/17/diy-mechanical-flux-dispenser-syringe-has-fine-control/)

Simple Mods Turn 3D Printer into Electrochemical Metal Cutter
https://hackaday.com/2021/12/17/simple-mods-turn-3d-printer-into-electrochemical-metal-cutter/

We’re not aware of any authoritative metrics on such things, but it’s safe to say that the Ender 3 is among the most hackable commercial 3D printers. There’s just something …read more (https://hackaday.com/2021/12/17/simple-mods-turn-3d-printer-into-electrochemical-metal-cutter/)

This Week in Security: Log4j, PDF CPU, and I Hacked Starlink
https://hackaday.com/2021/12/17/this-week-in-security-log4j-pdf-cpu-and-i-hack-starlink/

The big news this week is Log4j, breaking just a few hours too late to be included in last week’s column. Folks are already asking if this is the most …read more (https://hackaday.com/2021/12/17/this-week-in-security-log4j-pdf-cpu-and-i-hack-starlink/)

Gluggle Jug Is Neat Application of Hydrodynamics
https://hackaday.com/2021/12/17/gluggle-jug-is-neat-application-of-hydrodynamics/

The Gluggle Jug is an aptly-named thing – it’s a jug that makes loud, satisfying glugging noises when poured. But how does it work? [Steve Mould] set out to investigate.  …read more (https://hackaday.com/2021/12/17/gluggle-jug-is-neat-application-of-hydrodynamics/)

Hackaday Podcast 149: Ballerina Bot Balances, Flexures Track Cat Food, PCB Goes Under the Knife, and an ATtiny Does the 555
https://hackaday.com/2021/12/17/hackaday-podcast-149-ballerina-bot-balances-flexures-track-cat-food-pcb-goes-under-the-knife-and-an-attiny-does-the-555/

Newly ordained Hackaday editor-in-chief Elliot Williams and staff writer Dan Maloney jump behind the podcast mic to catch you up on all this week’s essential hacks. We’ll have a Bob …read more (https://hackaday.com/2021/12/17/hackaday-podcast-149-ballerina-bot-balances-flexures-track-cat-food-pcb-goes-under-the-knife-and-an-attiny-does-the-555/)

Error Codes and the Law of Least Astonishment
https://hackaday.com/2021/12/17/error-codes-and-the-law-of-least-astonishment/

Do you know the law of least astonishment? I am not sure of its origin, but I first learned it from the excellent “Tao of Programming.” Simply put, it is …read more (https://hackaday.com/2021/12/17/error-codes-and-the-law-of-least-astonishment/)

Building a Custom Branding Iron With Swappable Date Blocks
https://hackaday.com/2021/12/17/building-a-custom-branding-iron-with-swappable-date-blocks/