ABS / PLA Filament

[alodia]

abs is more 'crude' but more strength and higher melting temp. pla has a better 'resolution' but weaker, if you are into replacement parts, abs, but for more detailed hobby creations, definately pla

[Feign]

I'm a bit curious, what filaments can print without a heated bed other than PLA? I saw a demo recently of nylon being printed directly onto wood and it appeared to stick magnificently. I've also seen conflicting stuff about printing PET with or without a heated bed, so I'm not sure what to believe on that. Any others?

[Genero]

It all depends of what kind of prints you make. PLA is rigid and ABS flexible. ABS can be melted, polished, shaped and it fits perfectly nestable parts, for example.