...
All hardware at Midnight Sun is designed using Altium, it is a very complex piece of software and we will only scratch be scratching the surface here. For more detailed documentation, go to http://techdocs.altium.com/display/ADOH/Altium+Designer.
Here are some resources to get started:
Schematic Symbol/Footprint Libraries and Component Creation
Design Rule Checking (DRC)Linking Solidworks and AltiumRules