Tutorials.
For the past several years, I have published various blog posts and instructions on how I design and build things - art, objects, and tools. Below is a collection of some of the tutorials and processes I've published - with difficulty levels ranging from beginner to advanced. I have learned so much by following other makers on the internet, so my hope is that some maker out there, somewhere, might find my documentation useful. Enjoy!
For Beginners:

Learn how to prototype 3D objects with cardboard and paper.

Learn how to build a simple aluminum tripod mount for a Kinect Sensor!

Learn how to build a low-cost Hydraulic Press.

One of my first tutorials! Learn how to use a low-cost vinyl plotter to create printed circuit boards for your electronics projects.
Intermediate:

Learn how to use Autodesk Inventor to create a design in sheet metal. Then build it in aluminum!

Learn how to build the PaperSynth: an Arduino-based synthesizer circuit (for under $5!)

Learn how to build your own Flex-Shaft Drill Press with 3D-Printed Parts.

Learn how to plate 3D prints in copper and silver!
Advanced:

Learn how to create Printed Circuit Boards using the Toner Transfer Method.

Learn how to build your own Cubecube tactile CAD Interface!

Learn how to etch a two-sided printed circuit board.

Learn how to build your very own Glove One, a 3D-printed, wearable cell phone glove.