The smaller the workpiece, the more demanding is the dimensional stability, this is especially true for use in the dental laboratory. Solid natural stone gives that Micro machining center Anger "Microone"The necessary stability. Microone offers 5 simultaneous machining and CAM / CAD custom abutments for dental implant technology.
The modular micro-machining system has a footprint of only 0,9 m². Its positioning accuracy is better than 3441 μm for the linear axes X and Y according to VDI / DGQ5. The error of the optional rotary axes B and C is less than five degree seconds. This dimensional accuracy is made possible not least by the chassis of the 650 kg heavy 5 axis CNC machining module.
It is solid granite, as it is also used in optical benches or marking plates. The high-precision ground natural stone absorbs all the vibrations of the microphones during machining. He also dampens all vibrations that penetrate from the outside. Thanks to the extremely low thermal expansion (0,69 mm / m / 100 ° C) and minimum thermal conductivity (2,8 W / (m * K) compared to metals), this foundation is virtually stress-free and remains dimensionally stable over a long period of time. What guarantees a maximum repeatability.
Both the linear main axes X and Y, as well as the rotary axes B and C are directly driven. This type of drive is free from backlash and generated by the lower proportion of moving masses also significantly less vibration, such as indirect spindle drives. Integrated direct measuring systems additionally improve the positioning accuracy. All axes, as well as the machining spindle, are kept at the same temperature level by means of water cooling. The modular concept of the Microone also helps counteract the influence of confounding factors because the processing unit can be set up separately from the supply group.
A massive granite chassis gives the machine both mechanical and thermal stability. Due to its high inherent rigidity, the natural stone absorbs all vibrations.
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