The output voltage can be switched between 5V

when RS is high

All metal hotend will let you print at much higher temperature then possible with original PTFE lined one

3DE Premium PLA is a safe choice for a good everyday material

(Typical~ ± 0

3DE Premium - Conductive Filament - 1.75mm - 1kg Display The output voltage can beConductive filament 1kg This conductive filament is a modified PLA which is designed for low current circuits. The material appears more flexible than normal PLA and will be experienced as having a poorer fusion and adhesion to the workpiece plate. The material is available in 1. 75mm. This conductive filament is used as an antistatic material and has good mechanical strength.