1. Use an Enclosure

An enclosed 3D printer helps maintain a stable temperature around the part and reduces the effect of drafts. This is especially important for large ABS components, where uneven cooling can cause warping and layer separation.

A passive enclosure heated by the printer's build plate is sufficient for many ABS applications. After printing, allow the part to cool gradually to room temperature rather than exposing it to sudden temperature changes.

2. Improve Bed Adhesion

ABS can easily warp when the first layer does not adhere properly. A clean PEI build surface, suitable adhesive or other ABS-compatible bed treatment can improve first-layer adhesion.

Keeping the build plate clean is also important. Remove dust, grease and fingerprints before each print.

For large parts, adding a brim or other anti-warping features in the slicer can provide additional support.

3. Keep ABS Filament Dry

ABS can absorb moisture from the air. Wet filament may cause bubbles, popping sounds, inconsistent extrusion and weaker layer bonding.

Store ABS filament in a dry box or sealed bag with desiccant. If the material has already absorbed significant moisture, drying it according to the filament manufacturer's recommendations can improve print quality.

4. Set the Right Temperature

ABS generally requires higher printing temperatures than PLA.

A typical starting point for the nozzle may be around 230–250°C, while the heated bed is often set around 90–110°C. Exact values depend on the filament grade, printer and nozzle.

Always use the manufacturer's recommended temperature range as the starting point.

5. Reduce Printing Speed

Printing ABS too quickly can reduce layer bonding and create inconsistent cooling.

A moderate printing speed can provide more stable extrusion and better layer adhesion. For many printers, around 40–60 mm/s can be a useful starting range, while the first layers should generally be printed more slowly.

6. Control Part Cooling

Excessive cooling can create large temperature differences between layers and increase the risk of cracking or poor adhesion.

For ABS, part cooling is often kept low or turned off, especially during the first layers. The correct fan setting depends on the enclosure temperature, geometry and overhang requirements.

7. Calibrate Flow Rate

Incorrect extrusion can significantly affect ABS part strength. Under-extrusion may leave small gaps between printed lines and reduce layer bonding.

Calibrate the flow rate or extrusion multiplier for your specific filament and printer. Correct extrusion helps achieve consistent dimensions, stronger parts and a better surface finish.

From ABS 3D Printing to Production

3D printing is excellent for quickly validating ABS prototypes and functional designs. When tighter tolerances, better surface finish or production-grade materials are required, CNC machining can be a better solution.

Jingcheng Precision provides 3D printing, 3-axis and 5-axis CNC machining for prototypes and low-volume production. We can help select the appropriate manufacturing process based on your part geometry, material, tolerance and quantity.

Have an ABS prototype or custom plastic part? Send us your CAD or STEP file for a manufacturing review.