... wholly iron cast ,moving working table squ High Precision Jade CNC Engraver ,CE Authorized Productsthis is the newest model ,with moving ... linear, much more stable and solid structure.Rolling ball screw from Germany, two nut eliminating clearance, advanced fixing mode of ... )Format dictates G-codetransmission Two-nut rolling ball screws from Germany for x,y,z axis square linear guide wayResolution ...