3D Printer Filter Box

prusaprinters

<p>This is a compact filter box I designed to be mounted inside a lack enclosure. This model is a work in progress that I have been designing and improving for my custom lack enclosure project for my Prusa mini. I will post updates as the design is improved.&nbsp;</p><p>This design uses easily swappable filter trays to hold HEPA and charcoal filter material. I purchased my filter material from amazon. Air is pushed through the filter box using a Noctua NF-P12 12v 1700rpm 120mm computer fan. The filters are placed such that the air charcoal filter is closest to the computer fan, and the HEPA filter is in the second slot. This allows the faster air to pass through the more sparse charcoal filter to remove VOCs first and slowing down. Then the slower moving air hits the HEPA filter to remove airborne particulates before being exhausted from the back.&nbsp;</p><p>The filter trays feature handles and flexible release levers on either end of the handle. I recommend holding the handle with your middle 3 fingers, and pressing the levers with your pointer and pinky fingers. The filter trays have a flat panel grill that slide in from the back side to sandwich the filter material between the slide in grill and the grill in the main filter tray.&nbsp;</p><p>The main filter housing includes a mounting rail track for a printable rail for mounting the filter to the ceiling of a lack enclosure. The file for the rail will be uploaded when it's finished.</p><p><strong>Important Safety Note</strong></p><p>This filter box is designed to reduce the smell of filaments like PLA and PETG during long prints, and to remove particulates from the air. It should be used inside of a relatively well sealed enclosure, allowing the air to recirculate through the filter multiple times. It should NOT be relied on to protect you from highly toxic materials like ABS. The quality of the filter material you use is important to the performance of this design.&nbsp;</p><p><strong>Print Settings</strong></p><p><strong>Note</strong></p><p>Open the provided .3mf files in PrusaSlicer for the exact settings and paint on supports I used to print the parts.</p><p><strong>Printer</strong></p><p>Prusa Mini</p><p><strong>Hotend</strong></p><p>215 C</p><p><strong>Bed</strong></p><p>60 C</p><p><strong>Material</strong></p><p>PLA or PETG<strong>&nbsp;</strong></p><p><strong>Supports</strong></p><p>Required for most parts</p><p><strong>Layer Height&nbsp;</strong></p><p>0.2mm</p><p><strong>Raft</strong></p><p>No</p><p><strong>Brim</strong></p><p>Yes(Even with PLA). Use a brim to prevent warping off the build plate. Most parts are designed to be thin wall, to minimize material required, and have no infill to resist warping.&nbsp;</p><p><strong>Modifier Meshes</strong></p><p>All grills are created using modifier meshes, 0 top and bottom layers, honeycomb infill. &nbsp;</p>