Introduction

ABS is the most common FDM desktop printing material. It is thermoplastics, meaning it enters a soft and moldable state when heated and then returns to a solid when cooled. Via the FDM process, it is melted and then extruded through a nozzle to build up the layers that create a final part.

ABS (Acrylonitrile Butadiene Styrene) is a common thermoplastic well known in the injection molding industry. It is used for applications such as LEGO, electronic housings and automotive bumper parts.

Generally the tolerances and accuracy of FDM printed components are largely dependent upon printer calibration and model complexity. However, ABS and PLA can be used to create dimensionally accurate parts, printing details down to 0.8mm and minimum features down to 1.2mm. For connecting or interlocking parts, a tolerance of 0.5mm is recommended and using a minimum wall thickness of 1 – 2 mm will ensure adequate strength in wall elements.

With similar tensile strengths, ABS and PLA are both adequate for many prototyping applications. ABS is often preferred due to its improved ductility over PLA. With a higher flexural strength and better elongation before breaking, 3D printed ABS can be employed for end use applications whereas PLA remains popular for rapid prototyping when form is more critical than function.

ABS 3D printing
PropertiesABS
Tensile Strength27 MPa
Elongation3.5 - 50%
Flexural Modulus2.1 - 7.6 GPa
Density1.0 - 1.4 g/cm3
Melting PointN/A (amorphous)
BiodegradableNo
Glass Transition Temperature105 ℃
Spool Price*** (1kg, 1.75mm, black)$USD 21.99
Common ProductsLEGO, electronic housings

Pros

  • Very sturdy and hard
  • Suitable for machine or car parts
  • Higher melting point
  • Longer lifespan

Cons

  • Made out of oil, more damaging to the environment
  • Deforms when not being print on a heated surface
  • More difficult to print
  • Hot plastic fumes when printing
  • Not suitable for using with food
Price
Details
Time
Design tips
max bounding box

Maximum bounding box

X =24,  Y=15,  Z=15

Min bounding box

Minimum bounding box

5 mm * 5 mm * 5 mm

Min embossed detail

Minimum embossed detail

Z = 0.2 mm , Y = 0.3 mm

0.5 mm for readable text

Min engraved datail

Minimum engraved detail

Z = 0.2 mm , Y = 0.3 mm

0.5 mm for readable text

Min unsupported wall

Minimum unsupported wall thickness

0.7 mm

A supported wall is connected on two or more sides. An unsupported wall is one connected to other walls on less than two sides. Walls in your model should be thicker than or equal to the minimum measurements suggested to ensure your model makes it through printing and cleaning. Walls that are too thin are prone to warping in the printing processing, or may break when we remove it from the printer and clean it. Walls and wires close to or slightly above the guidelines may still be rejected based on the geometry. For example, extra long wires or walls protruding from an object may be damaged during cleaning. Our production team will communicate with you if the design is too weak with tips on how to strengthen it.

min supported wall

Minimum supported wall thickness

0.7 mm

Min supported feature size

Minimum supported feature size

0.8 mm

Min unsupported feature size

Minimum unsupported feature size

1 mm

A geometry considered a wire when its thinner in both unconnected directions than its length. When a geometry is thicker than 0.9 mm in one direction, it will fall under the wall guidelines. Wires that are under our suggested minimums are prone to breaking in the cleaning process, or warping.

Overhangs and supports

Overhang and supports

Can print without supports < 45°

Need supports > 45°

clearance between parts

Clearance between parts

0.5 mm

Clearance is the space between an two parts, e.g. space between gears or a ball and socket joint.