NOTE: contains LaFactoria3D's original mask parts that this is designed to fit. It's a good design, but if you feel their updated version provides better protection I urge you to use it instead.

Replacement cap for LaFactoria3D's COVID-19 MASK

While printing mask parts for Lowell Makes I wanted to find some way to help healthcare workers relieve some stress. Making replaceable caps seems the best way to offer an adjustment; these clip right onto existing masks without interfering with function and maybe they can lighten the mood in pediatrics.

This is my third model: the Optimus Prime version. It clips in place of the existing cap, is lightweight, doesn't interfere with airflow, and might fit under a face shield. Version 1 of this is included (the solid piece) in case that's better for your particular printer.

The sides and mounting bracket can be printed without supports, but the front and top still need some. I would experiment with them at different angles; tipping the top piece forward around 60 degrees reduces the supports to nearly nil while eliminating any stepping pattern that would normally occur on the near-planar surfaces. Then simply glue the mask front and top together, add the sides, and lastly glue in the mounting bracket so you can test fit the connection. Hit me up if you have Peter Cullen's contact info so I can send him a painted and fully assembled version. [joking/not joking]

How to assemble these efficiently and what to look for in filtration materials can be found here, thanks to GiveWave Studios: https://youtu.be/9ItpExBEieY

If you find any issues with it or think of ways to improve its design, please let me know. Feel free to modify this and share it to the community.