Publications by authors named "Graeme Hunwin"
Desktop 3D printers in the workplace: use, emissions, controls, and health.
Ann Work Expo Health
December 2024
Desktop three-dimensional (3D) printers are used in businesses, schools, and colleges, and are generally of an unenclosed design which may give rise to injuries or inhalation exposure to emissions of small particles (<1 µm) and volatile organic compounds (VOCs). The aim of this work was to explore the health risks related to the use of desktop 3D printers in workplaces in the United Kingdom. A digital survey on the use of desktop 3D printers was completed voluntarily and anonymously between February and June 2023, receiving 146 responses.
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- The study evaluated the efficiency of reticulated metal foams in measuring dust generated by a rotating drum tester, following the EN 15051-2 standard for workplace exposure.
- Two methods of testing were used: one in a calm air chamber with glass aerosol particles, and another comparing metal foams to a cyclone setup with various glass powders.
- Results indicated that the current metal foam setup oversamples respirable dust compared to EN 481 standards, suggesting improvements such as redesigning flanges and better sealing to avoid clogging issues with very dusty materials.