Question 1

Which 3D printing filament is the strongest?

Accepted Answer

Nylon (PA) and PC (polycarbonate) are the strongest common filaments, followed by PETG and ABS. PLA is stiff but brittle under stress.

Question 2

Which filament is easiest to print?

Accepted Answer

PLA is by far the easiest - it prints cool, needs no enclosure, and gives crisp detail. PETG is a durable step up with a little more tuning.

Question 3

PLA or PETG - which should I use?

Accepted Answer

Use PLA for display models and indoor decor where detail matters. Use PETG for functional or water-resistant parts that need more strength and heat tolerance.

Question 4

Which filament is best for outdoor use?

Accepted Answer

ASA is best outdoors - it resists UV and weather better than ABS. PETG and PC also hold up reasonably well.

Question 5

Which filaments need an enclosure?

Accepted Answer

ABS, ASA, Nylon and PC print best in a heated enclosure to avoid warping and splitting. PLA, PETG and TPU print fine on an open printer.