Manufacturing: Face Shield - M

Recommended Material: PETG

Print Settings (0.40mm Nozzle)

Print with normal PETG print settings other than the following

• Layer Height: 300um
• Infill: 0%
• Shell: 3 perimeters or 1.35mm
• Minimum Layer Time: 0s
• Print Speeds: As fast as your machine can handle without losing layer adhesion
  • You can increase print temp to help compensate for decreased layer adhesion at high speeds. However, we do not recommend increasing by more than 20C.

The optional bottom reinforcement should be printed with the same settings as the Head Piece listed above. In our testing, with the 0.02in PETG foil, the improvements when using the bottom reinforcement were negligible. If you are using a thicker material for the foil, the bottom piece may be more useful.

The V4 design can be stacked so that multiple shield components can be printed at once. This is particularly useful for optimizing overnight printing.

To stack, align each subsequent piece 12.3mm above the previous one. There needs to be a 0.3mm gap between each part. This applies to both the Head Piece and the Bottom.

When done, gently separate the parts. They should come apart fairly easily.

Buttonhole elastic is recommended for the strap, but a 3D printable strap file is included as backup due to the limited supply of buttonhole elastic.

Recommended Material: TPU less than 92A

Altered Print Settings

• Build Plate Temp: 100C

Recommended Material: Clear PETG 0.02in (~0.5mm)

If you need to use thicker material for the foil we have options for 0.034in or 34 mil (0.86mm). Use the 3D files labeled 34 mil in this case. Everything else stays the same.

Recommended Material: Buttonhole elastic 3/4in or 1in

Cut Length: 220mm (8.75in)

Use a lighter, soldering iron, or hot wire cutter to melt the cut ends of the elastic to keep it from fraying.

• 3D printed parts are printed at higher than normal temperatures.
• The clear plastic foil is sent to the end-user with the protective film left on.
• All parts are removed from the machines and assembled by a worker wearing gloves and protective face gear, then placed immediately into a ziplock bag and sealed.
• Bagged face shields are stored in a closed container until they are ready to be distributed.
• When packing for distribution packers wear gloves and protective face gear.
• Shields are shipped disassembled to be assembled by the end-user to minimize unnecessary exposure at our facility.
• In addition, employees undergo regular handwashing and our facility is being cleaned more frequently in high use areas.