The protective visor

thingiverse

The protective visor is composed of three essential components. First, there's a sturdy 3D PLA frame, a transparent polycarbonate sheet measuring 0.6mm to 0.8mm in thickness and A4 size, along with four flexible 3D TPU pins and one elastic material. Printing the frame requires approximately one hour and forty-three minutes at 20% straight filling without any support structures. In contrast, printing the four TPU plugs takes a mere twelve minutes. Notably, all four can be printed simultaneously using 100% concentric filling. The visor's top can also be sealed with a custom-shaped piece of polycarbonate. Before assembly, it's necessary to drill four holes on the transparent sheet (210x297mm), specifically along its long side. The special tool typically found in offices is ideal for this task. To ensure precise spacing, the distance between each hole must be exactly 8cm.