M17 / M17A1 Gas Mask Filter Blank / Insert
thingiverse
The size and proportions of the original blank/insert model didn't fit my M17A1 gasmask. This is a complete redesign based on measurements from the MSA M13-A2 filters that were included.I've added an air channel leading from the external opening to where the air exits the filter pouches. The should prevent the rubber from sealing up around the back side of the opening and creating a breathing restriction.I wasn't able to figure out how to properly curve a surface in FreeCAD. I simulated by using two ellipsoids to cut the top and bottom of a pad. Needless to say this kludge required a painful amount of trial-and-error to get both the dimensions and positions spot-on. I welcome a remix, or even just a comment with guidance, if anyone here knows how to properly curve surfaces in FreeCAD.
With this file you will be able to print M17 / M17A1 Gas Mask Filter Blank / Insert with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on M17 / M17A1 Gas Mask Filter Blank / Insert.