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Description
This is not just another 3D printed face shield; it was designed to fix the issues with all current DIY shields being donated (based on feedback from dozens of nurses across several Maryland hospitals). Instead of trying to create a shield that we could make as cheap and quickly as possible, we decided to make the best shield possible for under $5.
Our solutions to the issues…
- Not comfortable to wear for 12 hours (poor distribution of forces)
- Utilization of GoPro style elastic head gear which was designed to comfortably support an extended mass.
- Need to completely remove when not in use
- GoPro style mount allows user to raise shield visor when needed.
- Different forehead profiles result in clearance issues with masks
- Pivoting visor allows for clearance adjustability.
- Require larger 3d printers and difficult to print multiple at once
- Needing to print only the shield support mounting attachment allows for larger print batches, quicker print times, and allows for printing on smaller printers.
The shield utilizes a hole patern from a standard 3-hole punch. Diameter ~0.265" and spacing of 4.25". The beauty of this design is that if you are provided with a different shield that is uncomfortable you can disassemble it, put holes in the visor using a 3-hole punch, and mount it to this design!
There are two versions of the knob. The tight knob refers to a slightly decreased size for the bolt head. It ensures that the bolt fits securely in the knob but it requires force to insert all the way. If you are having trouble getting the bolt all the way down, use the knob setter I have provided. Place the knob setter on a hard surface, place the knob on top and push the bolth through the knob and knob setter. Then use a hammer and punch to light drive the bolt into the knob, the bolt will bottom out at the perfect distance due to the knob setter height.
Bill of Materials:
PETG
GoPro Style Mount Elastic Head Gear
M5 x 20 Hex Bolt
.015"-.040" PETG or Polycarbonate Sheet
Who we are and what have we done?
Marc Hemling and Andrew Hong are two engineers in the aviation industry. Together, we've designed, tested, and are manufacturing face shields using 3D printing technology. Our significant others work in the local hospital systems, and have faced challenges with sufficient or comfortable PPE. Through them, we have had direct feedback from local Maryland hospitals go into the design.
If you are unable to make these yourself but wish to reach out to help, you can find us at our facebook page.
Important Information