Files to build eye/face protection using your 3d printer and CNC machine. The idea for the visor mount came from this guy in Sweden.

https://3dverkstan.se/protective-visor/protective-visor-versions/

I liked the idea of a visor that worked similar to a pair of glasses not requiring a band that fit around the head. Something that can be used while wearing a wool cap.

I originally started this towards the end of March in 2020 while the Covid-19 Pandemic was making headlines and was hitting the first responders harder than anyone had prepared for. In areas where infections were concentrated the demand on the hospitals was such that the staff and first responders were running out of personal protective equipment (PPE). As of this writing, this is still an issue in certain parts of the country and world.

The thickness of the polycarbonate ( what lenses of safety glasses are made from ) used here required a redesign of the visor holder as well as making a mold for creating the shape of the shield. There are 4 shield sizes in the DXF file and three pictured here. As far as fogging goes. It seems like once the clear shield is warmed up a bit closer to the temperature of your breath, the condensation starts to taper off.

My original intent was to create something robust for people in the roles of first responder. After using these around the shop as I created the final iteration I believe a better use for these would be as eye/face protection in a shop environment. It is easy to put on and take off and it stays put when on. A 1” strip of a bicycle inner tube with holes created every inch or so works well as a strap in the back. There is an additional connection point in the front if a 3 point harness is required. A strap in the back works fine for me. So this is how this is put out there. General Eye/Face protection/Shop gear etc. I’m sure it would deflect someone’s sneeze or cough just as well as it would a flying piece of wood.

Printing:
Material-PETG

Extrusion Width .59mm

Layer Height .5mm

Takes about 50 minutes to print

Polycarbonate- Brand used here is Makralon. .06” Thick

Oven set to 183 C

Material set on a .125” aluminum sheet in oven for 10 minutes give or take.

Pulled out on the aluminum sheet, the workpiece can be nudged off onto the form and with leather gloves, formed around the top edge of the bending form. It cools very quickly. The top edge is the only critical bend. The rest will sag naturally around the form below.

Cnc cutting of the Plug was in MDF with a 1/2” cutter. I used Meshcam -http://www.grzsoftware.com/-

to create the 3d toolpaths.

The polycarbonate was cut with a 3mm bit. The corners of each interior cut square are drilled with the 3mm bit.

In the spirit of what is going on in the world today none of these files may be used for creating products for commercial purposes.

If you have any questions about this sed me an email. I’d be glas to share with you what I’ve learned in making these.

Thanks to Craig Downey at Liberty Bay Canvas for setting me up with the polycarbonate and Tim Akes at Mpanel for flattening the curved polycarbonate model for 2d cutting.