Montana Mask Utah Edit GOST 8762-75 threads + big filter version

thingiverse

This adds GOST 8762-75 gas mask threads to the Utah mask. The outer thread stays the same so you can alternatively use the original lid. I created lot of things with these threads recently, so I added threads here, too. Maybe I'll need them? The files named Utah* are original. Update: The retention body may turn in the original thing as well as in my remix, thereby damaging the filter. I added a new file with blockers. Update 2: I added the big filter body from below into the mask. It's yet to be tested. For the other parts of the filter, please see the linked filter. Update 2.1: Make the inner hole bigger. Change the filter support accordingly and make it optional. For the version with just the open hole, add a version with support that should avoid having to generate support material by the slicer. Note:Slic3r does not slice this well, cura seems to manage creating the bridges. Alternative Filter, bigger area, better breathing, you need these files for the big filter version: https://www.thingiverse.com/thing:4280911 The original Montana Filter adapter: https://www.thingiverse.com/thing:4260420 --- Edit: I found that the original masks has a non-commercial license. The recommended price cap is $2. https://www.makethemasks.com/faq