PrintMath

{a} vs {b}

PropertyPLAPLA-CF (carbon fibre)
Nozzle temperature190–220 °C200–230 °C
Bed temperature50–60 °C50–60 °C
EnclosureNot requiredNot required
Density1.24 g/cm³1.3 g/cm³
Strength3/54/5
Heat resistance~55 °C~60 °C
UV resistance2/52/5
Flexibility1/51/5
Print difficulty1/52/5
Typical price~$20/kg~$30/kg

Quick verdict

{name} in short

The default filament. Prints easily on almost any machine, holds detail well, and is cheap. It softens at low temperatures, so it is a poor choice for hot cars or functional outdoor parts.

{name} in short

PLA filled with short carbon fibres. Stiffer and more dimensionally stable, with a matte finish. Needs a hardened nozzle because the fibres are abrasive.

Which should you choose?