What is ABS filament? A tough, heat-resistant print material

What ABS is good at

ABS lands in the middle of the filament range for difficulty and near the top for toughness. It survives temperatures that warp PLA, takes paint and glue well, and can be smoothed with acetone vapor for a glossy, layer-free shell. That makes it a common pick for drone frames, brackets, automotive clips, and any part that sits in a warm place or takes a knock.

The trade-off is printing it. ABS shrinks as it cools, so it lifts and cracks without a heated, enclosed chamber. It also releases styrene fumes, so it is not a bedroom-window material. If you have printed only PLA, expect to re-tune your setup.

ABS print settings, in short

Print ABS hot and enclosed. Polymaker’s PolyLite ABS calls for a 245 to 265 C nozzle, a 90 to 100 C bed, and the part cooling fan off. Keep the printer in an enclosure that holds the chamber warm, because fast cooling causes layer splits. A brim or draft shield helps the first layer stay put. The full walkthrough is in the how to print ABS guide.

ABS vs close alternatives

ABS is not the only engineering plastic. ASA prints almost the same way but adds UV resistance for outdoor parts. PETG gives you much of the toughness with far less warping and no strong fumes, at the cost of lower heat resistance. If your part will not face sun or high heat, PETG is often the easier choice.

For the wider picture of where ABS sits among the six common families, see the 3D printer filament overview.