Toby (online at tgctech.org) is a high school student in Darien and swimmer for CPAC, He is a self-taught Electronic Hobbyist, 3D Printing Enthusiast, and amateur sysadmin who also dabbles in Android development/hacking and web design. Some of his recent projects include the TGC Big 3D printer v1, a 400x400x400mm RepRap machine that is currently about 3/4th of the way finished.
An opensource automated Arduino 18650 battery capacity tester, so that you never get scammed by fake Chinese battery cells.
A video microscope for SMD soldering using an old point and shoot, a linear rod from a trash picked HP printer, a magnifying glass, and some 3D printed bits.