Many of you have asked me to provide a list of materials and costs for the CNC Machine. Here, I will provide a list of the materials, costs and where they can be purchased. In the list, I will also include various alternatives for different types of applications. This may include types of cutting tools, types of motors for the axes, etc. I will keep this list alive and updated in the "stuff for sale" in lieu of a better place. Please write me with suggestions, and if you know of better prices and places to get these materials. This list is a work in progress, since I wanted to make it available immediately. Most prices are from memory, until I find my receipts somewhere in one of my packing boxes, so you may see numbers change, but it gives you a general idea.

CNC Machine Structure
Description	Unit Cost	Qty	Cost	Upgrade Cost
MDF 2' x 4' x 3/4"	$9.00	3 Sheets	$27.00	$27.00
Aluminum Angle 3/4" x 1/8"	$1.50/lf	8	$12.00	$12.00
Bearings (for sale here)		30 Pack	$24.00	$24.00
Bolts 5/16" - 18 x 3/4" L (for slide bearings)	.17	24	$4.08	$4.08
Nuts 5/16" - 18 (Box of 100)		100	$7.00	$7.00
Screws 1/4" - 20 (Box of 50)		50	$6.00	$6.00
Nuts 1/4"		100	$3.50
Cross Dowel Nuts (for sale here)		60		$28.00
Couplers (1/4" bore - 2 hubs and an insert)	$8.00	3	$22.50	$22.50
Aluminum Angle 1 - 1/4" x 1/8"		8'	$20.00	$20.00
		Sub Total	$127.88	$152.08

CNC Electronics
Description	Unit Cost	Qty	Cost	Upgrade Cost
Driver Board L298 L297 Combo (Very inexpensive alternative and Total DIY)	$16.00	3	$48.00
Driver Board (HobbyCNC 3 Axis)	$79.00	1		$79.00
Power Supply Components:
Transformer - 24Volt 10Amps	$39.00	1	$39.00	$39.00
Bridge Rectifier	$4.00	1	$4.00	$4.00
Capacitor (Min 14000 uF)	$20.00	1	$20.00	$20.00
Steppers:
NEMA 23 80 oz-in (surplus)	$10.00	3	$30.00
NEMA 23 305 oz-in	$45.00	3		$135.00
Cables contingency	$100.00	1	$100.00	$100.00
Cutting Tool:
Router	$100	1	$100.00	$300.00
		Sub Total	$341.00	$677.00
Computer (Quad core)				Priceless!