Glasses holder for 3M 6000 full face mask

thingiverse

Allows the glasses to be held very tightly by the bridge so then the sides on glasses can be removed and allow airtight seal around the face. It's not a replacement for 3M 6878/07141 spectacle kit, but something to get you going until you will be able to buy your spectacle kit. The big difference is that spectacle has its own custom glasses frame, while this approach expects to use your glass frame (or your spare glasses). Consists of 3 parts, part1 fits into the mask, has multiple holes for adjustments, part2 which offsets the glasses from part1 under certain angle (you might have to print your version of part 2 and/or 3) and then part3 which is clip to secure the glasses. Some parts are parametric so they can be adjusted. Made for M2.5 screws and holes are made for M2.5*3.8*5 brass inserts, use a soldering iron to melt them into the place (see attached images). The holes for standoffs have 3.5mm diameter, while being 11.5mm apart. Both bottom side of part2 and top side adhere to this that means that even part3 which screws into the part2 has 11.5mm spacing between the holes, but in part3 the holes have 3mm diameter because they need only the screw thread to pass through the hole and have to stop the screw head. If the provided part2, and 3 are not good enough feel free to make your own which fits your face/glasses better. There are two variants of part2 and multiple holes in part1 so the provided parts might fit well enough. SolidWorks source files provided for anybody who wants to tweak it but doesn't want to start from scratch or resort to modifying the STL files. None of these parts need support to print and the biggest overhang is 60 degrees so it's very safe to print without extra precautions.