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High-Speed Optical Gantry (XY Positioner)

High-Speed Optical Gantry (XY Positioner)

Challenge: Shorten focusing times in new-generation system using a high-precision stage. Flatness, straightness, and speed in a particular imaging area are critical to the application. Specs are not as critical outside of the specified imaging area.

Solution: Motion Solutions utilized ground and lapped aluminum bases, super-precision grade linear guides to help maintain flatness and straightness, stainless steel optical encoder for positioning and linear motor as a drive mechanism for speed and precision. The solution included external components, and Motion Solutions-designed machined parts.

Result: MOSO’s responsive and timely work produced the high-speed optical gantry on granite leading to a reduction in focusing times. Results in specified imaging area:

  • X-Axis Straightness: 0.59 microns
  • X-Axis Flatness: 0.93 microns
  • X-Axis Repeatability: 0.38 microns, bi-directional
  • Y-Axis Straightness: 5.5 microns
  • Y-Axis Flatness: 3.4 microns
  • Y-Axis Repeatability: 1.26 microns, bi-directional
  • Settling Time (10mm move, 1G acceleration, 4kg load): 7 ms; Total move under 100 ms)
  • XY Perpendicularity: 8 arc-seconds

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Our Design Process

“It’s really important to thoroughly understand the application. We would start by reviewing the statement of work or application information that the customer provides, and then we would have a consultative meeting to make sure that we really understand how the system should function, and all of the nuances that are associated with it.”

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