Create circuit prototypes and other conductive pathways with these low-maintenance PLA filaments. They combine a conductive additive with PLA, the most commonly used filament material. Their low melting temperature means they rarely clog nozzles and won’t warp while cooling, so they don’t need a heated printer bed. They produce clean, string-free parts that capture the details of intricate designs. PLA should primarily be used to print prototypes, as it isn’t strong or heat resistant enough to create parts for repeated use. Unlike other materials, PLA filaments won’t produce toxic fumes while printing, so they don’t require ventilation. These filaments are for use in fused filament fabrication (FFF) 3D printers.

To ensure your part conducts electricity properly, use an electrical resistance tester, which measures surface resistivity. In general, the target surface resistivity for printed parts is 10¹ to 10⁶ ohms. To adjust, change the temperature of your printer’s extruder. As the extruder’s temperature increases, so will the printed part’s conductivity.

Maximum exposure temperature is the point at which a printed part will begin to deform. Above this temperature, your printed parts will start to lose structural integrity.