An abstract collection of a macro view of an array of nails on an isolated white background
" data-medium-file="https://hackaday.com/wp-content/uploads/2021/12/bed-of-nail.jpeg?w=400" data-large-file="https://hackaday.com/wp-content/uploads/2021/12/bed-of-nail.jpeg?w=800">Join us on Wednesday, December 15 at noon Pacific for the Design for Test Hack Chat with Duncan Lowder! If your project is at the breadboard phase, or even if …read more (https://hackaday.com/2021/12/13/design-for-test-hack-chat/)

Ask Hackaday: Are Extruders the Only Feasible Tools for Toolchanging?
https://hackaday.com/2021/12/13/ask-hackaday-are-extruders-the-only-feasible-tools-for-toolchanging/

Toolchanging in 3D printers is no longer something from the bleeding edge; it’s going mainstream. E3D has a high-quality kit for a toolchanger and motion system, our own Joshua Vasquez …read more (https://hackaday.com/2021/12/13/ask-hackaday-are-extruders-the-only-feasible-tools-for-toolchanging/)

USB LED Christmas Tree is Making Spirits Bright
https://hackaday.com/2021/12/13/usb-led-christmas-tree-is-making-spirits-bright/

[Piotr SB] knows there is no way out of the holidays; the only path is through. You’ve got to find cheer wherever and however you can, so why not cater …read more (https://hackaday.com/2021/12/13/usb-led-christmas-tree-is-making-spirits-bright/)

An Open Source Detector For Identifying Plastics
https://hackaday.com/2021/12/13/an-open-source-detector-for-identifying-plastics/

One of the challenges involved in recycling plastic is determining the specific type of plastic a given item is actually made of. To keep up with demand, large scale recycling …read more (https://hackaday.com/2021/12/13/an-open-source-detector-for-identifying-plastics/)

A Self Righting Balancing Robot Configured The Easy Way
https://hackaday.com/2021/12/13/a-self-righting-balancing-robot-configured-the-easy-way/

https://www.youtube.com/watch?v=FlivZoxygZM
" data-image-caption="" data-medium-file="https://hackaday.com/wp-content/uploads/2021/12/Snap-2021-12-13-at-13.38.42-featured.png?w=400" data-large-file="https://hackaday.com/wp-content/uploads/2021/12/Snap-2021-12-13-at-13.38.42-featured.png?w=800">Norwegian electronics hacker [Hans Jørgen] aka [time expander] on YouTube, has a clear interest in robotics, and for his latest effort, decided that it was time to build a custom …read more (https://hackaday.com/2021/12/13/a-self-righting-balancing-robot-configured-the-easy-way/)

Measuring Air Quality Using Mobile Sensors for the Masses
https://hackaday.com/2021/12/13/measuring-air-quality-using-mobile-sensors-for-the-masses/

Poor air quality is a major problem for city dwellers the world over. Dust, smoke, particles and noxious gases from vehicles, industry and agriculture makes many megacities downright hazardous to …read more (https://hackaday.com/2021/12/13/measuring-air-quality-using-mobile-sensors-for-the-masses/)

Pit Your Wits Against British Spooks
https://hackaday.com/2021/12/13/pit-your-wits-against-british-spooks/

The festive season is upon us, and for Brits of a technical bent that means it’s time for the GCHQ Christmas Challenge. Sent out annually as part of the Christmas …read more (https://hackaday.com/2021/12/13/pit-your-wits-against-british-spooks/)

DIY Semi Auto Grinder Builds Itself (Sort Of)
https://hackaday.com/2021/12/14/diy-semi-auto-grinder-builds-itself-sort-of/