What are the potential hazards of using FDM printers?

Fused Deposition Modelling (FDM) printers can indeed pose exposure to fumes and risks of burns as significant hazards. When FDM printers operate, especially at higher temperatures required for melting thermoplastics, they may release volatile organic compounds (VOCs) and other potentially harmful fumes into the air. These emissions can be particularly concerning in poorly ventilated areas, where inhalation could lead to health issues.

Additionally, the printer's heated components, such as the nozzle and heated bed, can reach very high temperatures. This creates a risk of burns if someone comes into contact with these parts during or shortly after the printing process. Hence, appropriate safety measures, such as ensuring adequate ventilation and allowing the printer to cool down before handling, are crucial.

The other options do highlight some considerations, such as physical strain from heavy lifting which can happen in a workshop or lab environment, and electrical hazards associated with any electrical equipment. However, focusing solely on these aspects does not encompass the specific dangers posed by the operational characteristics of FDM printers. The assertion that all components are completely safe is misleading, as every device comes with some level of risk that requires awareness and management.