California Bay Area Face Shields Manufacture

Picture of two Prusa 3D Printers with face shield components. The left most printer has a completed build plate of eight face shield headbands printed in grey filament and the printer on the right shows a completed build plate of four of the same model headband printed in red.
Reference Model 

I've successfully printed over 300 units of this design between the RC2 & RC3 and have been very pleased with the result. They are durable, comfortable, provide adequate coverage from ear to ear, and have been well-received by testers. I hope to print 1000 more.

For best results, print in PETG and finish with a heat gun to remove excess stringing. Clear any leftover debris from the headband to ensure there are no clumps of material that might be uncomfortable for the wearer.

If you are using a Prusa Mk3S, there is a Prusa-provided gcode file meant exclusively for an Mk3 series printer that will allow you to print stacks of four to eight headbands and chin reinforcements at a time and speeds the stepper motor speeds up to about 130%, resulting in an average print time of 1hr 20min per unit, or a little over 11 hours for a set of eight. I have linked the gcode in the review. It is current as of 04/09/2020 and was sourced fromĀ https://www.prusaprinters.org/prints/27267/files

If you are not using a Prusa Mk3, you may consider doing a few unit tests at different speeds to see how fast you can reasonably print the model without a reduction in rigidity or durability. I've observed in my prints, that increasing temps as you increase speed seems to ensure more stable volumetric extrusion values.

This model adheres fairly well to a PEI build plate but can lift on the outside edges near the fastener for the elastic band. If you do speed up, be sure to calibrate your PID values and bed height to avoid under extrusion, and ensure optimal bed adhesion.

Printer Technology/Material 
Printer Make/Model 
Resolution (Layer Height) 
.25

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Picture of two Prusa 3D Printers with face shield components. The left most printer has a completed build plate of eight face shield headbands printed in grey filament and the printer on the right shows a completed build plate of four of the same model headband printed in red.
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