What happens if you have to make a lot of crossovers on a circuit board? For example, here is a printed circuit board that connects pins 1 to 10 in a randomly chosen order. In this layout, finished by a person after the autorouter gave up, you have to drill 14 holes, spend time and …
Author Archives: cindy.harnett@louisville.edu
Update: A blistering summer
Jeremy at FirstBuild pulled a couple of vacuum molds for the light diffuser on the Trilife cellular computing project. Here’s a video showing a softened thick PETG sheet forming over the triangular mold: Next you let it cool, then you tap it to knock it off, and then pull the mold down as in this …
Pop up 3D structures printed on stretched fabric
Amy discovered some good settings for getting 3D printed materials to stick to spandex. We can print flat, thin structures and have them control how the fabric bends and folds. We can also use the fabric’s tension to warp them into 3D shapes. This concept has a lot in common with our microscale pop-up structures. …
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Recent Student Deeds
Four independent study students finished projects in Spring 2015. (A) Tayce Lassiter tested a differential impedance circuit on paper microfluidics, and also built a metal case to keep out noise.(B) Juan Espinosa, our GE Edison student, carried on an embedded systems project on a self-filling water pitcher for the fridge. He also motivated the ECE …
Cyber plumbing with ANSYS Fluent
Flows can be driven using metallized surfaces in an electric field. This research area is called “induced charge electrokinetics.” It originated in the world of metal colloids, saw some applications in microfluidics in the 90s, and has seen more intense research over the past 10 years. This paper is a good introduction to flows around …