[Entropia] decided to try his hand at rolling is own sound card. He picked out a DAC chip, started his prototyping by studying the reference design from the datasheet, then went through several iterations to arrive at this working model. He chose to base the board around the PCM2706. It’s a digital to analog converter [...]

[Joshendy] wanted to get a better look at the cutting head on his CNC mill when it was running. The problem is that the rotating blades throw up a lot of junk which you don’t want flying around the shop so they’re usually surrounded with a shroud connected to a shopvac. He just milled is [...]

[York] wrote in to share a video he stumbled across while researching reed switches and relays, which documents the tightly controlled process through which they are produced. Like many other electronic components out there, we usually don’t give a lot of thought to how they are made, especially when the final cost is relatively small. [...]