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

prusaprinters

<figure class="media"><oembed url="https://youtu.be/ZeGle7PNdVg"></oembed></figure><figure class="media"><oembed url="https://youtu.be/GRsH9rjMf8I"></oembed></figure><h3>Customizable filter cartridge using Openscad.</h3><p><a href="https://www.openscad.org">https://www.openscad.org</a></p><h3>Licensed under theCreative Commons - Attribution -<strong>No Derivatives</strong>.</h3><p>You can repost your remixed STL. But please don't repost your remixed scad file, as I will update it.</p><p>Design to best suit for the following Valvy Mask and respirator.<br><a href="https://www.thingiverse.com/thing:4280201">Flexible Mask Rolley Universal Modular System</a><br><a href="https://www.thingiverse.com/thing:4177128">Flexible Mask Valvy</a><br><a href="https://www.thingiverse.com/thing:4185367">Simply Flexible Mask Valvy</a><br><a href="https://www.thingiverse.com/thing:4189592">Respirator Valvy [ad:hoc]</a></p><p>Just modify 3 parameters to create your own filter cartridge stl.<br>You can also adjust the center of mount and the shell thickness.<br>The animated gif below shows how much the customization can do.</p><p>Do <a href="https://www.thingiverse.com/thing:4196325/comments">feedback</a> and post a <a href="https://www.thingiverse.com/thing:4196325/make">Make</a> about your STL, filter material info, where to buy and the customization parameter to the below. Goodluck!!!<br><a href="https://www.thingiverse.com/thing:4196325/comments">https://www.thingiverse.com/thing:4196325/comments</a></p><p>/////////////////////Customization BEGIN/////////////////////////</p><p>// time to create your own HEPA filter Cart size</p><p>//Filter parameter<br>HepaLength=60; // -20<i>$t;</i><br><i>HepaWidth=50; // +30</i>$t;<br>HepaThickness=10; // +15*$t;</p><p>//Fitting parameter<br>Shift=5; // -10<i>$t; //Filter center adjust from mount center. Too much will collapse the housing cone</i><br><i>CoverDelta=2.5+(0.28); //adjust "+(0.88)" the cover size to fit the housing, or heatgun action //0.88PLA Cover //0.28TPU Cover</i><br><i>MountSizeAdj=3.15; // +8</i>$t; //Flexible Mask Valvy //3 TPU2TPU //3.15 PLA2TPU //3.4 PLA2PLA<br>//Simply Flexible Mask Valvy //1 TPU2TPU<br>InletBoundaryWidth=8; //default 8. Adjust to prevent filter edge leakage.</p><p>//Mount Size options<br>//MountSize=33.6/2 ; // Flexible Valvy<br>//MountSize=22.4/2-MountSizeAdj; // Ambu Mask 22.4 diameter.<br>MountSize=24/2; // 3M Mask 6k 7k series or compatible</p><p>3MMountThickness=-0.0; // 3M Mask 6k 7k series O-ring Adjust. (or error compensation due to overhang structure.)</p><p>//3d printing parameter<br>Slope=15; // +10*$t; //Adjust to avoid overhang print issue<br>ShellThickness=1.28; // Too less will collapse the cone(too thin). Adjust this will also need to adjust CoverDelta.</p><p>//Uncomment one of below, press F6 and wait, then F7 to export STL.<br>//translate([10*$t,0,0])<br>{<br>//HEPA_Housing(0); //Suggest PLA<br>HEPA_Housing(1); //3M Mask 6k 7k series. Suggest PLA<br>HEPA_Cover(); //Suggest Flexible/TPU<br>%HEPA(HepaLength,HepaWidth,HepaThickness);<br>}</p><p>/////////////////////Customization END/////////////////////////</p><p>Welcome comments and suggestions.</p><p>Tip me a cheese burger and subscribe my YouTube Channel if you like my work.<br><a href="https://paypal.me/iczfirz">https://paypal.me/iczfirz</a><br><a href="https://www.youtube.com/c/iczfirz">https://www.youtube.com/c/iczfirz</a></p><p>Special thanks to <a href="/danielmgroh1/about">danielmgroh1</a> who made a comment to request support for HEPA.</p><h3>Looking for 3d printed air purifier device? Here you go the &gt;&gt; <a href="https://www.thingiverse.com/thing:4229193">[Deckman]</a></h3><p>&nbsp;</p><figure class="media"><oembed url="https://youtu.be/ZeGle7PNdVg"></oembed></figure><p>&nbsp;</p><h3>Video Instruction How-To Customise.</h3><p>&nbsp;</p><figure class="media"><oembed url="https://www.youtube.com/embed/GRsH9rjMf8I"></oembed></figure><p>&nbsp;</p><p>&nbsp;</p><figure class="media"><oembed url="https://www.youtube.com/embed/1G451lqZLEI"></oembed></figure><p>&nbsp;</p><p>&nbsp;</p><figure class="media"><oembed url="https://www.youtube.com/embed/GP\_iqANWqfc"></oembed></figure><p>&nbsp;</p><p>Category: DIY</p>