Hand Engraving Machine For $65 What it can do,and how you can make one

The origin of the idea,and links to parts to buy. http://www.ebay.com/itm/500W-20A-12V-24V-DC-Brush-Motor-PWM-Speed-Controller-LED-Display-Governor-Driver-/222087634547?hash=item33b5745e73:g:VlgAAOSw~oFXEMbn http://www.ebay.com/itm/Heavy-Duty-Portable-12V-150PSI-Car-Tyre-Auto-Tire-Inflator-Pump-Air-Compressor-/121962461283?hash=item1c65877863:g:kn8AAOSw3mpXFzcJ http://www.ebay.com/itm/Universal-12V-24-360W-2-5-10-20-30A-Switching-Power-Supply-Driver-for-LED-Strip-/231667699743?var=&hash=item35f078901f:m:mhU16LOJEyhyChwdfXTojWQ http://www.ebay.com/itm/LED-Precision-Screwdriver-Rolson-Chrome-Vanadium-Shaft-Diy-Hand-Tools-28221-/130966871721?hash=item1e7e3bdea9:g:5aYAAOSw~bFWHW79 http://www.ebay.com/itm/9mm-Diameter-Carbon-Steel-Bearing-Balls-Each-Bid-for-30-pcs-/171830640018?hash=item2801e77d92:g:2l4AAOSw1x1UROfw http://www.ebay.com/itm/4pc-Spring-Clamp-4-inch-Heavy-Duty-Metal-Nonslip-Grips-Welding-Woodwork-Set-/281815240334?hash=item419d7f4e8e:g:myEAAOSwzJ5XUdmX http://www.ebay.com/itm/5mm-ID-Clear-Plastic-PVC-Hose-Pipe-Air-Water-Windscreen-Washer-Tube-Pond-/251399672811?hash=item3a889693eb:g:Dd8AAOxyUrZSpaIs&vxp=mtr