features: - heavily ribbed & tension released "meehanite" machine frame. - z axis precision linear guideway + ballscrew & fitted with electro-magnetic brake, driven by high performance d.c. servo motor. - x & y axis preci......features: - heavily ribbed & tension released "meehanite" machine frame. - z axis precision linear guideway + ballscrew & fitted with electro-magnetic brake, driven by high performance d.c. servo motor. - x & y axis precision ballscrews, driven by high performance d.c. servo motors. - "l" & "h" models 3 axes equipped with linear guideways & precision ballscrews. - z axis programmable auto rough to fine sparking up to 12 steps. - reverse sparking ( z axis upward sparking) function. - centre finding. contact the manufacturer