Brent Yi

I’m a third-year studying Computer Science at the University of California, Berkeley.

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3D Printer



Junior year of high school: I really wanted a 3D printer, but they were still really expensive at the time. Then, I discovered the good work being done by the folks working on the RepRap project.

By leveraging open source designs (specifically the Prusa i3 and Wilson), an Arduino microcontroller, a used XBox 360 power supply, and a couple hundred hours of my own design changes, I built this open-frame printer for ~$230.


Example prints


(pulleys for my electric longboard, right side is smoothed with acetone)