from the conferences organized by TANGER Ltd.
For additive production, where the material is prepared by applying thin layers, a simplified designation 3D printing has been used. During this production volatile organic compounds and ultrafine particles are emitted into the air. A number of measurements for a given type of printer with a specific type of thermoplastic are published on this topic. The procedure of our measurement of the concentration of nanoparticles (10-700 nm) and their mean diameters can be called "field", because it took place in a real environment with mass deployment of 3D printing on the principle of FFF / FDM, with the measuring device moving between printers in various premises and activities:in the production of parts intended for the assembly of printers,in the manufacture of components for shields during the lockdown period associated with Covid-19,in the creative workshops and laboratories of Prusa Research a.s.The aim of these measurements in real situations was to find measures to reduce the concentration of nanoparticles. Evaluation of the results was proceeded according to the ISO / TR 27 628 standard and determined a proposal of measures of a technological and organizational nature to reduce concentrations. Based on the results of our measurements these measures include (a) using central extract ventilation of the entire workplace, (b) separating the printer area from the workplace and using extract ventilation, and (c) filtering the air in the entire workplace using an air purifier. When adopting these measures, the financial requirements and technical feasibility must always be considered.
Keywords: Nanoparticles, 3D printing, FFF/FDM technology, concentrations of nanoparticles, safety measures© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.