Our motion systems are often scaled up for large-format manufacturing applications, but we’ve recently taken our technology in the opposite direction to address miniature manufacturing. Case in point: We’re putting the finishing touches on a new 3-axis motion stage for a vision-guided CNC micromachining system.

With a work envelope measuring 690 x 450 x 150 mm, this micromachining stage has a large addressable area that might not seem “micro” at all. Yet with a positioning resolution of just 0.5 µm, the stage enables the machining of sub-micron features on larger workpieces.

The system is built around around a trio of our zero-backlash Servonut LowBoy linear axes, which incorporate Bosch-Rexroth precision-rolled ball screws and bearings. Renishaw linear encoders, Teknic Eclipse 545 amps and Emoteq motors round out the controls.

Together, these components add up to a CNC system that makes quick, accurate bidirectional moves without sacrificing the high-axial stiffness required for a steady machining spindle. In testing, our new micromachining stage has been making accurate 0.5 µm step moves with ease.

This particular stage represents just one of our on-going projects in miniature manufacturing. Sign up for our electronic newsletter to be the first to learn about another unique CNC micro machine that we have in the works.

Published in Bell-Everman News