Hackaday.com

Your Own Tool Changer

7 hours 11 minutes ago
All the cool new 3D printers have tool-changing heads. Instead of multiplexing filament through one hot end, you simply park one hot end and pick up another. Or pick up …read more
Al Williams

Skylab Under the Ocean

16 hours 11 minutes ago
A crew lives on a station in a hostile environment. Leaving that environment requires oxygen tanks and specialized gear to deal with pressure differentials. A space station? Nah. A base …read more
Al Williams

Passive Radar Explained

1 day 22 hours ago
It is an old trope in submarine movies. A sonar operator strains to hear things in the ocean but dares not “ping” for fear of giving away the boat’s location. …read more
Al Williams

A Suction-Driven Seven-Segment Display

2 days 7 hours ago
There’s a long history of devices originally used for communication being made into computers, with relay switching circuits, vacuum tubes, and transistors being some well-known examples. In a smaller way, …read more
Aaron Beckendorf
Checked
1 hour 11 minutes ago
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