rPLA is a type of printing filament, also known as filament, that is used in 3D printers. The "r" in the name stands for "recycled" and distinguishes this material from regular PLA. The rPLA material is made from the scraps and waste of standard PLA plastic. This waste can come, for example, from failed 3D prints, leftover filament on spools or from industrial production. The collected PLA waste is first cleaned, sorted by colour, then crushed into small pieces and then melted. This molten mass is then used to recreate the printing filament. In terms of use in a 3D printer, rPLA behaves very similarly to standard PLA. That is, it prints at similar temperatures and speeds and does not require special printer setups. The main importance of rPLA lies in its environmental benefits. Its use reduces the amount of plastic waste and reduces the need to produce new, so-called 'virgin' plastic. Due to its recycled origin, the colour shade of the material may vary slightly between production batches. As a result, rPLA is an alternative for users who want to take advantage of the properties of PLA material, but also prefer a more sustainable approach to 3D printing.