Electronics

Developed filament flow sensor addon for 3D printers allowing for closed loop control of extrusion. Minimized part count by using a compliant mechanism. Maximized reliability and lifespan by using solid state hall effect sensor. Wrote I2C interface drivers for 3D printer firmwares Marlin (Arduino architecture) and Smoothieware (ARM architecture). CAD in Onshape, schematic and PCB layout in KiCAD.

Arduino project using 7-Segment LED display reflected in windshield to create a Head Up Display (HUD).

Custom circuit with a PICAXE-14M microcontroller and a ULN2803 darlington LED driver. PCB etched by hand with toner transfer and hydrochloric acid.