A3 Face Shield no hole punch (Aegis mask Cardiff remix)

prusaprinters

<p>Taking inspiration from brilliant designs by Hanoch Hemmerich and Aeneas Solis, I designed a face shield that uses A3 size acetates (29.7 x 42.0cm widely available) which provides considerably more protection than A4 sheets. This design require no hole punches and wraps right round the head. Smaller plastic sheets can also be used.<br/> Construction video here: <a href="https://youtu.be/2JEADY4SrO0">https://youtu.be/2JEADY4SrO0</a></p> <p>I based this on designs by Aeneas Solis and Hanoch Hemmerich here:<br/> <a href="https://www.thingiverse.com/thing:4238890">https://www.thingiverse.com/thing:4238890</a><br/> <a href="https://www.thingiverse.com/thing:4233193">https://www.thingiverse.com/thing:4233193</a></p> <p>REVISION HISTORY<br/> v4 - Increased front lip distance to stop fusion. Increased size of hook arms to aid bed adhesion. Decreased side grip diameter to better grip acertate.<br/> v3 - Removed fillet on bottom to aid bed adhesion<br/> v2 - Increased size of hooks on end of arms to help bed adhesion<br/> v1 - Original</p> <h3>Print instructions</h3><p>At 30% infill on an Ultimaker 2+ the print time is 2hrs 34. If you go to a lower or higher infill the print time will increase.</p>