Aegis

Face Shield for COVID-19

This is the result for my search for the optimal 3D printed face shield.

I wanted to help provide a design that can be mass produced to help fight the ongoing COVID-19 pandemic.

I’ve modified some existing designs and improved on several aspects. Credits to the original designer.

Printing Notes

• To achieve around 30 minutes print time I calibrated the design to be printed with these settings: 0.3 Layer Height, 0.8 Extrusion Width / Line Width (very important! 50% savings in print time), on a 0.4 Nozzle.

Credits

Face Shield by HanochH

Hook by LadyLibertyHK

Release Notes

March 25 2020

• Uploaded aegis-faceshield-v1a.stl used thicker layer for the hood.
  Recommended version because first version aegis-faceshield.stl is demanding on bed adhesion and extrusion calibration. It might compromise safety of wearer due to gaps if printed incorrectly.

• Added aegis-faceshield-with-v1a-with-temple.stl (prototype) not yet tested. My printer is small. Need volunteers to print it and give feedback!

March 24 2020

• Uploaded first version of face shield aegis-faceshield.stl and mask-hook-no-logo.stl for the hook

Objectives

1. Low cost that can be made and given to medical front liners
2. Fast printing, we need to be able to product a lot in a short amount of time
3. Printable on a small 3D printer bed, need to leverage all available printers out there
4. Easy to assemble and no post processing needed, time is valuable the faster we make the more lives potentially saved
5. Comfortable for extended wear, our medical front liners are tired need to help them as much as we can

Changes to optimize printing:

1. Modified the overall height a bit
2. Removed forehead support to lower profile
3. Shortened the temple (ear part) to allow printing in printers with small beds
4. Removed center rib, less print movement
5. Overall from original 22 grams to 15 grams in weight.

Features:

1. Completely closed top to prevent droplets in the air entering the eyes.
2. Semi flexible for comfortable fit
3. Adjustable tension via back hook for comfort
4. Very light weight (15 grams est. without Acetate)
5. Modified thickness on certain parts from the original design to save on material cost and print time.

Materials for construction:

• 1 pc Acetate Sheet (A4) or any plastic that is rigid
• 2 pcs Rubber Bands
• 1 3D Printed Face Shield Frame
• 1 3D Printed Hook for Rubber Band (credits to LadyLiberty)

P.S.

Fight hard against COVID-19!

Regards from the Philippines.