http://www.evilmadscientist.com/
Anyone ever see this? It retails for 450$. I know many could build for much less. I could see someone hooking up a laser in the pen holder. But I would need a way to turn on and off the beam when the pen holder drops (on) and lifts (off)
Anyone ever see this? It retails for 450$. I know many could build for much less. I could see someone hooking up a laser in the pen holder. But I would need a way to turn on and off the beam when the pen holder drops (on) and lifts (off)