spec-shield is a curvature adjustable face shield that tackles undesirable reflections and can be mounted on spectacles.
The curvature of the face shield is modelled as a parabola with a fixed arc length between the mounting points.
The entire design space is explored for curves that prevent undesirable reflections and optimal design variables are chosen.
- Width of frame, 2*fw = 67.5mm
- Mounting offset, fh = 20mm
- Mounting point (x), mx = 10mm to 30mm
- Mounting point (y), my = 15mm
- Layer height = 0.12mm
- Nozzle diameter = 0.4mm
- Infill = 100%
G-codes can be found here: gcodes
This is merely a working prototype and contributions are welcome.