Our Minitech 4 axis CNC micro milling machine (step size resolution 0.2µm) can be used for fast prototyping of molds, devices or sample holders. It can be used with polymers or metals, to precisely drill holes or micro-machine complex shapes with micro bits. Designs can be implemented using Solidworks and Mastercam software. The stepper motors controlling the stage employ micro-stepping, and a XYZ resolution of 1 μm is achieved. The repeatability of the system, including the spindle run-out, has been experimentally found to be less than 5 μm when working on areas a few centimeters across, which is the dimension typically used for microfluidic systems. X, Y, Z Axis Travel 12.0" x 9.0" x 9.0" (300 x 200 x 200mm) Feed Rates .1 to 150 ipm linear .1 to 50 ipm 3-axis simultaneous Stepper Motors 200 steps per revolution in full step mode, rated at 250 oz. in. Drivers Standard Step Modes: Micro stepping modes up to 12,800 steps per revolution (1 step, 1/2 step, 1/4 step, 1/8 step, and 1/64 stepping modes) Resolution Modes • Standard .0005" full step, .00025 half step • Micro Stepping Modes: .000125" 1/4 step, .0000625" 1/8 step, .0000078125" in 1/64 step Spindle Speeds 1000 RPM to 60,000 RPM Tool Chuck: vacuum chuck