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.
- single 3mm filament extruder with a 0.5mm nozzle
- 8” x 8” x 7” build volume
- successfully tested up to a 100mm/sec max print speed
(pulleys for my electric longboard, right side is smoothed with acetone)