GoPro - Helmet Extensor
https://www.youtube.com/watch?v=26-G9azr_B8&feature=youtu.be

Nozzle size - 0.3 mm Layer height - 0.1 mm Shell thickness - 0.6 mm Fill Density - 60% Bottom/Top thickness - 0.2 mm Nozzle temp - 240°C (Material: ABS) Bed temp - 83°C

Speed. Travel - 150 mm/s Bottom layer - 40 mm/s Infill - 65 mm/s Top/bottom - 40 mm/s Outer shell - 40 mm/s Inner shell - 55 mm/s

Support type - Everywhere Estimated Time - 6 hs