How to Make a Three Axis CNC Machine (Cheaply and Easily

The idea behind this Instructable was to fulfill my desire for a desktop sized CNC machine. While it would have been nice to purchase an off the shelf unit the issue of price as well as size proved prohibitive. With this in mind I endeavored to design and build a three-axis CNC machine with the following factors in mind:

-Use Simple tools (needs only a drill press, band saw, and hand tools)
-Low Cost (this kind of got away from me however with everything bought off the shelf the cost for all parts is under $600 (significant savings could be made by skillfully sourcing some pieces))
-Small footprint (30" x 25" footprint) 
-Usable working envelope (10" X-axis, 14" Y-Axis, 4" Z-Axis)
-Relatively fast cut rate (60" per minute)
-Small part count (fewer than 30 unique parts)
-Easy to source parts (all parts available from 4 sources (Home Depot + 3 online sources)

I'm afraid I don't have the space (or the expertise for that matter) to go into the fundamentals of CNC here but there is one websites in particular I found quite useful in my research.

CNCZone.com - A discussion forum which has a DIY machine section which is a wealth of knowledge ( direct link )

Machine Details:

Cutting Head: Dremel or Dremel Type Tool

Axis Details:

X Axis
travel: 14"
Drive: Toothed Timing Belt
Speed: 60" min
Acceleration: 1" per second2
Resolution: 1/2000"
Pulses Per inch: 2001

Y Axis
Travel: 10" 
Drive: Toothed Timing Belt
Speed: 60" min
Acceleration: 1" per second2
Resolution: 1/2000"
Pulses Per inch: 2001

Z Axis (up down)
Travel: 4" 
Drive: Threaded Rod
Acceleration: .2" per second2
Speed: 12" min
Resolution: 1/8000"
Pulses Per Inch: 8000 

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