3D设计师BartłomiejGaczorek制作了一种面具，该面具过滤了污染的空气Sinterit LisaSLS 3D打印机。
Gaczorek，以前3D印刷了患有SMA的儿童的外骨骼（脊柱肌肉萎缩），设计的“ Brifo”面具，也针对年轻用户，Autodesk Netfabb, before SLS 3D printing it with multiple materials.
面具的裸露必需品
儿童有时需要对嘴和鼻子的防护盖，无论是从空气污染还是烟雾中的烟雾中。手术面膜虽然有效，但对儿童可能不舒服和没有吸引力。
Custom 3D printed options exist for adults, such as保护性口罩和健康监测智能口罩. However, children’s masks require special characteristics, including a lightweight design, protection for filters, and an eye-catching appearance.
Designing the mask
Gaczorek使用Autodesk Netfabb设计满足这些标准的面具。为了使其轻巧，设计结合了内部晶格和空气腔，而不会损害其强度。
These were calculated using Netfabb itself, avoiding mistakes that might weaken the mask’s overall structure. The software also detected design problems, repaired meshes, and automatically generated supports.
“A solid piece can be hollowed and filled with crystal-like lattice structures and vents for removing unsintered powder can be added in few simple steps,” said Gaczorek. “This reduces the final weight and material consumption by 50% compared to a solid part.”
最后，Gaczorek给了面具的前部一个想象中的，适合儿童友好的外观。
3D printing the protective mask
The Autodesk Netfabb workflow allowed Gaczorek to export the design files directly to the 3D printer without any need to convert formats. The automatic packing feature maximized the use of the print bed.
The Sinterit Lisa manufactured permanent end-use elements that could be treated and painted after 3D printing. Multiple materials were also 3D printed on the same printer, TPU for the flexible and adjustable parts around the mouth, and PA12 Nylon for the more rigid parts on the front and protecting the filters.
由此产生的“ Brifo”面膜具有光滑的前部和复杂的内部晶格。它符合耐用性，功能和低重量的要求，仅通过3D打印才能实现。
“SLS is a technology of 3D printing with almost no restrictions in the shaping of parts, perfect for organic and complex geometries and even interlocking elements,” said Gaczorek.
提名2018年3D印刷行业奖now.
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Featured image shows a child wearing a brifo mask. Photo via烧结.
