3M Filter - Drain cover Filter Capsule 渠蓋 Fit all 3m Gas mask with stand 3m Lock.

thingiverse

Online Order Here: https://forms.gle/WY96zptijme9u1da6 (This link is only available for Hong Kong residents) All profits, after deducting costs, will be used to fund future research and development of more products, with the hope of helping more people. Someone on Facebook has been severely infringing my copyright, violating laws by selling my designs and related products. I reserve the right to take legal action. I've designed these products without taking a single cent from anyone, solely for the benefit of Hong Kong people. If you'd like, you can pick up a free mask at a castle town near you. My team works tirelessly, day and night, printing masks for free, just because they care about our home, Hong Kong. Meanwhile, there are individuals like GT Lxxxxx who profit from selling these same designs. These people should take a good look in the mirror - have you ever learned what it means to be a decent human being? If you need help printing this mask, my small team can assist you. All profits, after deducting costs, will be used for public welfare research or charitable purposes. Anyone interested in receiving these masks can register here: https://forms.gle/AzXRNEEMRknDQmh68 UPDATE - 22 MARCH 2020 The screw base has been updated to resolve issues with other models aside from the 6100 series. The keyless turning grip has also been improved, and a wavy pattern has been replaced by spikes. Unfortunately, we'll need to print this model with support, but only minor support (about 0.5mm) is required. If you have a Prusa M3S printer, use the original Prusa slicer and choose the 0.15mm speed setting. This should take around 4 hours to complete one set. It's recommended to print in PLA, as it will work with PETG, but PLA will give you the best results. You can cut a normal mask into at least 12-16 circle pieces, which will work with two layers of mask per filter. However, single-layer masks are preferred for optimal airflow. Note that you might need to use a knife to trim the top of the screw head to make it easier to screw into the cap, but this is not necessary. If you find that this design does not provide sufficient protection for the filter, which is exposed, I have three other designs uploading with shields directly in front. However, these models will require support.