Why PLA?
PLA is chosen for its ease of printing and aesthetically pleasing finish, which is particularly suitable for sculptures with organic forms that require support structures. PLA excels in this regard, as it can support itself and allows for easy removal of supports without damaging the piece. While PETG is sometimes considered due to its higher strength, PLA offers a more refined, matte appearance—unlike PETG, which tends to have a slight sheen, even in matte variants. In the context of visual arts, aesthetics are crucial, and PLA delivers a professional, high-quality look, whereas PETG may appear glossy or feel like inexpensive plastic.
Printing Technique
PLA enables the printing of complex shapes and detailed undercuts, largely due to its compatibility with tree supports and the ease with which supports can be removed. This makes it especially suitable for intricate or organic designs where clean surface quality is important. PLA’s ability to act as its own support material further simplifies the process. However, its mechanical limitations must be considered. PLA is brittle and lacks strength under stress or abrasion, making it unsuitable for parts that interact with mechanical components.