FM12 VPU Adapter

Here is my first go at a VPU adapter for the the FM12 gas mask. Requires no permanent modification to the VPU or mask, only the removal of the drinking hose from the mask (which is removable by hand and re-attachable). The two parts mesh together and then are secured via a standard 3.6mm/0.142" zip tie on each side. The slot for the zip tie and the clearance between the two parts is fairly tight so may require some slight sanding or filing to get to fit depending on your print/settings. The drinking hose valve knob is simply cosmetic, I have also included a version without it. The fake drinking hose is aesthetic as well but also serves to prevent the adapter from spinning once installed. It can technically be removed but you will need to use tape or something otherwise the adapter will be able to freely rotate on the mask.

STLs are in imperial.

Here is a reddit link with some additional photos and details:
https://www.reddit.com/r/gasmasks/comments/1kgr9r6/newly_designed_3d_printed_