3.5mm Audio Input/Output Switch Box

This project is to clean up my 3.5mm (1/8") audio mess I have at my desk.  I have a few different sources; eg computer, tv, laptop, phone; and I have a few different devices that I want to output the sound to (headphones, speakers in different positions).  I don't want to keep hooking up all these different sound equipments, so I made a simple audio input/output switch box.

Quad Copter Design

My senior design project is to design and build a quad copter frame. The end goal is to build a sturdy enough frame that can withstand impacts and crashes. I will also attempt to make it fly after assembly.