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Electro-Osmotic Gripper Characterization for Layered Assembly.

Cheryl Perich1, Robert MacCurdy1, Ashley Macner2

  • 1Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, New York, USA.

3D Printing and Additive Manufacturing
|January 20, 2023
PubMed
Summary
This summary is machine-generated.

Researchers developed electro-osmotic grippers for precise, parallel voxel assembly in additive manufacturing. This fluidic pick-and-place method enables efficient, non-contact transport of delicate components for multi-material 3D printing.

Keywords:
additive manufacturingelectro-osmosislayered assemblymicrogrippervoxel printing

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Area of Science:

  • Additive Manufacturing
  • Materials Science
  • Fluid Dynamics

Background:

  • Voxel-based additive manufacturing requires precise manipulation of numerous small components.
  • Existing gripping mechanisms lack consistency and accuracy for micro- and nano-scale objects.
  • Parallel grasping of voxels is crucial for efficient multi-material part production.

Purpose of the Study:

  • To demonstrate a novel method for simultaneously transporting multiple millimeter-sized voxels using parallel electro-osmotic grippers.
  • To address limitations in consistency, accuracy, and efficacy of current voxel positioning techniques.
  • To enable massively parallel pick-and-place operations for additive manufacturing.

Main Methods:

  • Utilized parallel electro-osmotic grippers with individually controlled droplet arrays.
  • Employed electric fields to manipulate capillary effects for selective voxel grasping.
  • Developed a fluidic pick-and-place system for non-contact object transport.
  • Validated experimental results using analytical and computational models.

Main Results:

  • Achieved simultaneous transport of multiple millimeter-sized voxels with high reliability (95-98%).
  • Demonstrated a 25-element parallel assembly of 1.5-mm spheres in various geometric patterns.
  • Showcased the suitability of the method for fragile and complex objects due to non-contact handling.
  • Confirmed the scalability of the system for massively parallel pick-and-place operations.

Conclusions:

  • Electro-osmotic droplet arrays offer a promising solution for precise, parallel voxel manipulation.
  • The non-contact fluidic pick-and-place method enhances transport of delicate components.
  • This technology has the potential to revolutionize additive manufacturing of complex multi-material objects.
  • Enables the creation of multi-material parts with millions of components in a single print bed.