DIY CD Changer


[nophead] put this creation down to its final resting place, but it still deserves some attention. A Motorola MC6809 ran the show while a stepper driven robotic arm tipped with a suction cup fetched the selected disc. [nophead] has an interesting blog covering his work on building a 3d prototyping machine. The goal is to use it to produce a reprap, but he does a nice job of covering design problems and his attempts to solve them.

9V Battery As A Project Case


I stumbled on [Carlos]’ blog while I was hunting for Arduino ideas. This simple IR detector caught my eye – not for the project, but for the project case. He stuffed his IR detector inside an old 9V battery case. The TSA probably won’t like it, but it’s a fantastic idea for those smaller projects.