PLA: where almost every prototype should start

Why it earns the default slot

Low warp and sharp corners make PLA the most dimensionally trustworthy filament for iteration work — the printed part matches the CAD closely enough to trust your measurements. It's also plant-derived and prints odor-free, which matters more than people admit.

We reach for PLA for concept models, fit checks, architectural massing studies, jigs that live indoors, and any first draft of a design still finding itself.

Where it taps out

PLA softens around 55–60°C — a car dashboard in July will fold it — and long sun exposure makes it brittle. Parts headed outdoors or near heat should step up to PETG or ABS; we'll flag it in the quote if your notes hint at either.

PLA properties
Process	FDM
Tensile strength	~50 MPa
Heat resistance	~55–60°C
Rigidity	High / stiff
Outdoor use	Not recommended
Cost	$ — lowest on the wall