What I Learned from Building a Giant CNC Router Kit - Make:
Genmitsu CNC Router Machine PROVerXL 4030 for Wood Metal Acrylic MDF Carving Arts Crafts DIY Design, 3 Axis Milling Cutting Engraving Machine, Working Area 400 x 300 x 110mm (15.7''x11.8''x4.3'') - -
My DIY CNC Router build - YouTube
Building a CNC Router : 18 Steps (with Pictures) - Instructables