Line filter for ducts and fans Modular system

thingiverse

I designed this filter as reliable i can, The main filter is composed by a cartridge contains double filtering shape. You can use the type of filter you want, but i chose this size cause i bought some cheap kitten carbon filters, as well 150x160x10mm its an acceptable size, you can buy more large filters and cut in pieces. As well you can combine one shape of chemical filter whit one of mechanical filtering. Then, this cartridge gets stuck betwen 2 adapters, i designed this joint whit 0% deviation, it fits perfectly on SolidWorks, then to print and get correct joint you slicer must be adjusted in -0.1 Lineal Expansion. this fact allows the best joint, cause i don't fix a tolerance, the slicer fix this tolerance in all prints the same. Adapters: - Duct: 150, 125, 120, 100, 80mm - Fan: 120mm M4x40 screws for joints, M4 holes on fan adapters. 2020/04/13: Working on today Add new cartridge for Philips Vacuum cleaner filters (150x150x8) This Filter includes HEPA and carbon filter on the same pack Add New pair of cartridges cases whit more length to stack multiple shapes of filtering Add coupler to avoid use to long screws on the joint Add Bracket to screw the filter on flat surfaces https://es.aliexpress.com/item/32823534510.html?spm=a2g0o.productlist.0.0.20d5219bc5Yu06&algo_pvid=6c8b8b48-fea8-46f6-bfa8-dc01d5018c18&algo_expid=6c8b8b48-fea8-46f6-bfa8-dc01d5018c18-0&btsid=0ab50f0815867635557237704e7f46&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_