Hardware Development: Spark Shows How to Make a Prototype PCB

From Makezine:

Prototype 2 Production guides makers in designing their own boards.

Prototype 2 Production, a blog by the Spark team about bringing products to market, published the first of a three-part series this week on how to build a printed circuit board prototype. The guide, written by Spark’s head of supply chain Will Hart, walks readers through PCB fabrication specs, checking for design rule violations and generating layout files.
Fabrication specifications cover the physical basics of a board: attributes like the dimensions, number of layers, physical material, and board thickness, which Hart writes “have a tremendous affect on its cost, yield, supply chain, and manufacturability.”

http://makezine.com/2015/04/02/hardware-development-spark-shows-make-prototype-pcb/