After a whirlwind of collaborative effort, our Rancho maker space in Downy CA is cranking out shields! It will serve as our headquarters to produce both our Cast, and 3D printed shield designs. The shields we make will be distributed to Rancho Los Amigos National Rehabilitation Center as well as other Los Angeles County Department of Health Services facilities.

James Gildea (left) and Hon Li (right) monitoring 25 3D printers donated from Monoprice at the Rancho maker space


On April 4th, we gave six face shields to a local hospital. Not only does this provide them with desperately needed PPE, but it also gives us an opportunity to get feedback on different the different shield designs. Of the six prototypes, three used rivets to attach the shield, and 3 used a slotted opening in the headband. The shields were also a mixture of 3D printed headbands and silicone cast headbands.

Updated: Apr 4, 2020

The Supplyframe DesignLab graciously donated supplies and time to help us prototype and produce face shields. In particular, the DesignLab has a laser cutter which was used to test the laser cut face shield design. The headbands were cut out of acrylic, and the shields were cut out of PETG.

Updated: Apr 1, 2020

One of the proposed designs uses a flexible silicone mold to cast hard plastic face shield headbands. Each mold can be made in approximately 1 hour and 20 minutes. Each mold can be used to create about 20 bands. Silcast ii ( is poured into these molds and sets in about 20 minutes. Each mold has notches that can be drilled out to attach the plastic face shield (not shown) using fasteners. An elastic strap attaches to the back of the band for attachment to the head. The inside of the band is lined with non-porous closed-cell foam for added comfort.

Note! We learned that it is very important that the foam used is non-porous in order to reduce the risk of contamination.


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