If you are not comfortable with electronics, this might not be the build for you unless you have a qualified friend who can review your work. You will be wiring AC line components and high voltage electrodes.
There are several ways to control you laser and they all have different electronic setups. If you only need the laser to do cutting then I recommend using Mach3 or EMC2 re. If you want to do detailed engraving, then you also might need a dedicated controller. Each has it's own electronics setup. I only sell stuff for the software based control, so see the schematic below.http://www.buildlog.net/cnc_laser/erp/g ... ber=D40006
This post has a nice picture of a completed electronic moduleviewtopic.php?f=6&t=500&start=50#p3896