WashU Strap Adapter for 3D Printed Face Shield

This design has undergone review in a clinical setting and has been found appropriate when fabricated with the printer type and materials specified.

Submitted by:

cguertler

Fri, 2020-04-24 13:44

Vertical Tabs

General Information

Model ID

3DPX-014017

Category

Labware & Devices

Device Use

General Equipment or Adapter

Keyword(s)

3D print Face shield; FDM; Plastic; PPE; Face shield adapter

The strap adapter converts the strap hooks on the back of a 3D printed protective face shield frame to slots. The hooks were originally designed to be used with an elastic strap with slits (i.e. “buttonhole” elastic). The adapter allows the tourniquet strap to be attached and adjusted to a comfortable size for each user without cutting slits in the strap. An existing strap with slits can also be used with the adapter and adjusted for comfort.

3D Modeling/CAD Software

Fusion 360 / Solidworks

Model Origin

Custom illustration/CAD

How to Make

Printer Technology/Material

Material Extrusion

Printer Make/Model

Prusa i3 MK3S

Printer-specific Build Instructions

Build file

WashU_SlotConversionThin_for_PrusaShield_0.3mm_PETG_MK3S_16m.gcode

Specific material

PETG

Number of prints per build

Build time

16 min (thin)

Build file

WashU_SlotConversion_for_PrusaShield_0.3mm_PETG_MK3S_18m.gcode

Specific material

PETG

Number of prints per build

Build time

18 min (standard)

Pre- and Postprocessing Instructions

Slicer program and layer height will determine the thickness of the adapter. Do a test print to confirm thickness. Thickness will need to be adjusted based on shield material thickness.

Attribution

Attribution Instructions

Designed by Charlotte Guertler and Ruth Okamoto for the WashU/BJC Covid-19 Maker Task Force (Affiliation: Spartan Light Metal Products Makerspace, Washington University in St. Louis)

Documentation

Supplemental Documentation

Instructions for using the WashU Strap Adapter with the 3D printed Protective Face Shield

Reviewer Notes

The following refers to:

3dpx-014017

The FDA has authorized production of shield strap adapter outside of the normal clearance pathway during the Covid-19 pandemic, based on Part 5, section D of the “Enforcement Policy for Face Masks and Respirators During the Coronavirus Disease (COVID-19) Public Health Emergency Guidance for Industry and Food and Drug Administration Staff.”

This shield strap adapter has undergone review in a clinical setting and is recommended when fabricated as instructed.

RESOLVED:

Dear Author,

In order for us to move your submission to next approval stage we need to make sure you have printing instructions written out for users in order to be able to replicate your design properly. This is needed in addition to gcode you have already included in your submission. Please update and will be do final review.