Build a Hot Wire CNC Foam Cutter with inexpensive 3d printer electronics.

A Rod-type Linear Actuator based on the 40x40 V-slot profile

an 8020 build with 1010 extrusion (1") Square tubing Rough size is 24x24x36 (600x600x900) The expected usable print area 21.5x21.5X32"roughly (510x510x760) An XY 3D printer with 3 extruders and 3 Z-axis 0.9 degree motors the table (Z-AXIS) will lift up to the XY Carriage on 3 12mm linear rod and 3 8mm Lead screw's Corexy designs complete and Z-axis build is started don’t have a 3D cad system yet so building my prototypes on a pcb layout tool

All metal frame 500mm bed Delta 3D printer

Theoretical Working area: 38" x 24" x 6" Actual Working Area: 31" x 23.6" x 4" Positioning Accuracy: about 0.01mm

The Prusa i3 (iteration 3) is the newest and most current 3D Printer design by RepRap Core Developer Prusajr (source: http://reprap.org/wiki/Prusa_i3)

A new derivative of the famous OX CNC, with increases strength, rigidity, and accuracy.