ABS-CF Settings for Bambu Lab P1S

Temperature Settings

Start with the nozzle at 250°C and the bed at 100°C. If you see poor layer adhesion, increase the nozzle temperature by 5°C increments. If you experience stringing, decrease the nozzle temperature by 5°C. For the first layer, you can increase the bed temperature by 5°C for better adhesion, then let it drop back to 100°C for subsequent layers.

The ABS-CF filament has a recommended nozzle temperature range of 240-260°C and a bed temperature range of 90-110°C. The Bambu Lab P1S supports nozzle temperatures up to 300°C and bed temperatures up to 100°C, which fully covers the recommended range for this filament.

Speed & Quality

The Bambu Lab P1S supports high-speed printing at up to 500 mm/s. For ABS-CF, we recommend 30-50 mm/s for general printing. Start with the lower end for quality-critical prints and increase for draft prints. Always print the first layer at 25-50% of your normal speed for better adhesion.

For quality-critical prints like miniatures or display pieces, reduce the speed to 30 mm/s and use a 0.12-0.16mm layer height. For draft or rapid prototyping, you can push the speed to 50 mm/s with a 0.24-0.28mm layer height. The standard 0.2mm layer height at 40 mm/s provides the best balance of speed and quality for most prints.

Bed Adhesion

ABS-CF uses the same adhesion methods as standard ABS. Use a PEI sheet at 90-110°C with ABS slurry or glue stick. A brim is strongly recommended. The carbon fibers reduce warping compared to plain ABS, but an enclosure is still essential.

Common Issues with ABS-CF on Bambu Lab P1S

Here are the most common problems you may encounter when printing ABS-CF on the Bambu Lab P1S, along with proven solutions:

• Nozzle wear: A hardened steel nozzle is mandatory -- do not print with brass
• Warping: Use an enclosure, high bed temp (90-110°C), brim, and 0% fan
• Fumes: Emits styrene fumes like standard ABS; print in a ventilated area or use a fume extractor
• Clogging: Use a 0.5mm+ nozzle and avoid excessive retraction to prevent fiber jams

Tips for Best Results

Follow these expert tips to get the best possible prints with ABS-CF on your Bambu Lab P1S:

• A hardened steel nozzle (0.5mm+) is mandatory for carbon fiber filaments
• An enclosure is non-negotiable -- ABS-CF warps like ABS but the fibers help with dimensional stability
• Dry filament at 77°C for 6+ hours before printing; moisture causes bubbling and weak layers
• ABS-CF produces less warping than plain ABS due to the carbon fibers reducing shrinkage
• For outdoor applications, consider ASA-based composites instead -- ABS-CF yellows in sunlight

Support Settings

For prints requiring supports with ABS-CF, use tree supports for easier removal and less scarring. Set a 0.15-0.2mm Z-distance between support and model. If you have a dual-extruder setup, consider PVA (for PLA/PETG) or HIPS (for ABS) as dedicated water/solvent-soluble support material.

ABS-CF at a Glance

Bambu Lab P1S Specifications

The Bambu Lab P1S features a 256 x 256 x 256 mm build volume with a maximum print speed of 500 mm/s. It uses a direct drive extruder system, which provides better control over flexible and specialty filaments. The hotend can reach 300°C and the heated bed supports temperatures up to 100°C.