HEPA for 3M Valvy [Customizable] (Updated 17-Apr-2020 Support 3M 6k 7K series, BVM, Ambu Mask) Covid-19

thingiverse

<h3>Design Your Own Customizable Filter Cartridge with Openscad</h3> Check out the latest updates at https://www.openscad.org This design is licensed under Creative Commons - Attribution - No Derivatives. You can share your remixed STL files, but please don't post your modified SCAD files, as I'll update them regularly. This filter cartridge design is tailored for popular masks and respirators like the Valvy Mask and Respirator. Explore the following designs: * Flexible Mask Rolley Universal Modular System (https://www.thingiverse.com/thing:4280201) * Flexible Mask Valvy (https://www.thingiverse.com/thing:4177128) * Simply Flexible Mask Valvy (https://www.thingiverse.com/thing:4185367) * Respirator Valvy [ad:hoc] (https://www.thingiverse.com/thing:4189592) Just adjust three parameters to create your own custom filter cartridge STL file. You can also modify the mount center and shell thickness. Check out the animated GIF below to see how much customization is possible. Give feedback and post a Make about your STL, filter material info, where to buy, and customization parameter on this page: https://www.thingiverse.com/thing:4196325/comments <img src="https://thingiverse-production-new.s3.amazonaws.com/assets/5f/cb/91/8a/0d/HEPAparameterS.gif"></img> /////////////////////Customization BEGIN////////////////////////// // Time to create your own HEPA filter cartridge size // Filter parameter HepaLength = 60; // -20*$t; HepaWidth = 50; // +30*$t; HepaThickness = 10; // +15*$t; // Fitting parameter Shift = 5; // -10*$t; // Filter center adjust from mount center. Too much will collapse the housing cone CoverDelta = 2.5+(0.28); // Adjust "+(0.88)" the cover size to fit the housing, or heatgun action //0.88PLA Cover //0.28TPU Cover MountSizeAdj = 3.15; // +8*$t; // Flexible Mask Valvy //3 TPU2TPU //3.15 PLA2TPU //3.4 PLA2PLA // Simply Flexible Mask Valvy //1 TPU2TPU InletBoundaryWidth = 8; // default 8. Adjust to prevent filter edge leakage. // Mount Size options // MountSize = 33.6/2 ; // Flexible Valvy // MountSize = 22.4/2-MountSizeAdj; // Ambu Mask 22.4 diameter. MountSize = 24/2; // 3M Mask 6k 7k series or compatible 3MMountThickness = -0.0; // 3M Mask 6k 7k series O-ring Adjust. (or error compensation due to overhang structure.) // 3D printing parameter ShellThickness = 1.28; // Too less will collapse the cone(too thin). Adjust this will also need to adjust CoverDelta. /////////////////////Customization END////////////////////////// Welcome comments and suggestions! Tip me a cheeseburger and subscribe to my YouTube Channel if you like my work: https://paypal.me/iczfirz, https://www.youtube.com/c/iczfirz Special thanks to danielmgroh1 for requesting support for HEPA. Looking for a 3D printed air purifier device? Check out the >> [Deckman] (https://www.thingiverse.com/thing:4229193) design! https://youtu.be/ZeGle7PNdVg