X2 mill with final design scratch built 4th axis doing multiple operations with one G-code program. 4th axis has sealed ball bearings pre-loaded by threaded collar and homing index moved to the rear and a robust motor mount. A new Rutex 2010 servo drive gets full speed and power from the motor, allowing use of a carbide insert with chip breaker . . no more long stringies! Speed is 400,000 quadrature counts per sec, which is 3,300 motor RPM. Spindle can run 2:1 or 3:1 (as shown) ratio. First pas is .062" or 1/8" off stock OD. Tested depth of cut (so far) is .080" aluminum and .060 Steel, limited by rigidity of the little mill. Part is a vacuum fitting for classic Corvette (GM Crossfire injection).
Also still testing Youtube HD. This upload file is H.264 1080P 30fps. File size just under 1GB. Zooms are done in Adobe Premiere Pro CS3 and not by the Sony HDR-HC7 camera, so resolution reduces as zoom increases with interpolation done by Premier.