Materials Matrix: Strength vs. Weight vs. Printability

Material Snap Resistance (Impact) Heat Resistance (Tg​) UV Resistance Print Difficulty Flex / Rigidity Best Use Case
PLA 2/10 (Brittle) ~55°C (Low) 2/10 1/10 Very Rigid Low-stress prototypes.
PETG 6/10 (Tougher) ~75°C (Mid) 5/10 4/10 Semi-Flex Battery mounts & covers.
PCTG 8.5/10 (High) ~76°C (Mid) 6/10 4/10 Tough/Rigid Functional Parts
ASA 7/10 (Durable) ~95°C (High) 10/10 7/10 Rigid Outdoor/Sun exposed parts.
PC (Poly) 9/10 (Extreme) ~110°C+ 7/10 9/10 Very Rigid Gearboxes & Motor mounts.
PA-CF 10/10 (Elite) ~70-150°C* 7/10 8/10 Very Rigid Drivetrains & Sprockets.
TPU Unbreakable ~60°C (Varies) 8/10 7/10 High Flex Bumpers & Compliant wheels.