rapid prototyping – TechConnect Briefs

Numerical Simulation of Extrusion Additive Manufacturing: Fused Deposition Modeling

Verma A., Sukhotskiy V., Vishnoi V. Amiri Roodan P., Furlani E.P., University at Buffalo, US

We demonstrate a 3D computational fluid dynamic (CFD) simulation of the Fused Deposition Modeling (FDM) process. Extrusion-based additive manufacturing technologies, such as FDM, are advancing rapidly as applications of rapid prototyping for finished product development [...]

A family of MAV drives investigation

Dalewski R.T., Gumowski K., Barczak T., Godek J., Warsaw University of Technology (Politechnika Warszawska), PL

A critical overview of a family of drives designed for MAV purposes was conducted. In the family of drives ducted and non-ducted solutions of two counter-rotating and single propeller systems were tested. Rotor diameter for [...]

Focused Ion Beam machining of large and complex nanopatterns

Wilhelmi O., Roussel L, Anzalone P., Stokes D.J., Faber P., Reyntjens S., FEI Company, NL

Modern FIB columns have not only reduced minimum spot sizes, but has also improved beam profiles at large and intermediate FIB currents. Focused ion beams with high beam currents and yet small spot sizes and [...]

Favored Osteoblast Interactions with Aerosol Printed 3D Nano-to-Macro Hierarchical Architectures: The Promise of Nanocomposites as Orthopedic Prostheses

Liu H., Webster T.J., Brown University, US

Ceramic/polymer nanocomposites simulate bone in terms of its nanostructure and associated properties, thus, offering a promising new opportunity for bone regeneration in a natural way. Previous in vitro studies demonstrated that well-dispersed nanophase titania in [...]

Microfabrication of 3D Structures Using Novel Thermoplastic Elastomers

Sudarsan A.P., Wang J., Ugaz V.M., Texas A&M University, US

We demonstrate the use of novel thermoplastic elastomers synthesized by dissolving readily available polystyrene–(polyethylene/ polybutylene)–polystyrene (SBS/SEBS) triblock copolymers (e.g., Kraton™ G series) in hydrocarbon oils for which the ethylene/butylene midblocks are selectively miscible. The insoluble [...]

Leveraging Mainstream Design and Analysis Tools for MEMS

Mirman I., Flanders D.C., SolidWorks Corporation, US

After several decades spent largely in the research domain, MEMS-based products are finally being commercialized at a furious pace. These products can require extensive mechanical design and analysis capabilities, including: -3D construction and visualization; -material [...]

Direct Write Technology as a Tool to Rapidly Prototype Patterns of Biological and Electronic Systems

Ringeisen B.R., Chrisey D.B., Piqué A., Krizman D., Brooks M., Spargo B., Naval Research Laboratory, US

The full potential of modeling and simulations is only realized when it is based on experimental results under varied conditions and systems. A single tool to rapidly prototype electronic and biological circuits would enhance the [...]