Siraya Tech Fibreheart ABS-CF Core Filament User Manual

1.Introduction to Siraya Tech ABS-CF Core

Key Features: 

Designed for hobbyists and professionals, this guide unlocks the potential of ABS-CF Core, a revolutionary filament that utilizes core-shell technology.

The unique core-shell structure maintains superior Z-axis strength compared to conventional fiber-reinforced materials. It achieves tensile strength up to 49.9 MPa in the XY axis direction.

• 20% carbon fiber Core-Shell Enhance trength & Rigidity: Reinforced with 20% carbon fiber, providing exceptional strength and stiffness, ideal for high-performance applications.
• Enhanced Layer Adhesion: Core technology improves Z-axis strength, ensuring strong layer bonding and part integrity.
• Reduced Nozzle Wear: Core-concentrated design minimizes direct contact between carbon fibers and nozzle, extending nozzle lifespan.
• High-Temperature Resistance: With a heat deflection temperature of 90°C, it maintains stability in demanding environments.
• Safer Handling: Reduced surface fibers decrease skin irritation risk, making it safer to handle.

Application:

• Aerospace: Lightweight, high-strength components for drones and UAVs.
• Automotive: Heat-resistant parts for under-the-hood applications and structural components.
• Industrial: Durable tools, jigs, and end-use parts for manufacturing.
• Consumer Goods: High-performance sports equipment and protective gear.
• Robotics: Precise, strong mechanical parts suitable for automation projects.

2. Preparing for Printing

(1) Printer Compatibility: Siraya Tech ABS-CF Core is optimized for FDM printers equipped with direct drive extruders.

(2) Nozzle Recommend: Due to its core-shell structure, it's recommended to use hardened steel nozzles.

(3) Print Bed Temperature: Print Bed Preparation A clean, level print bed is essential. The recommended build plate temperature ranges from 100°C to 110°C.

(4) Compatible build surfaces include PEI film with optional PVP glue coating for optimal adhesion.

(5) Enclosure An enclosure is highly recommended even as the core-shell technology provides improved dimensional stability. If your device has a heated chamber, maintain temperatures between 60-80°C to help release residual stress during printing and prevent warping and cracking.

3. Material Characteristics

Density	1.09 g/cm³
Heat deflection temperature	83°C at 1.8MPa, 90°C at 0.45MPa
Tensile strength	49.9 MPa
Elongation at break	1.5%
Young's Modulus	4810 MPa
Bending strength	81.1 MPa
Bending Modulus	4450 MPa
Charpy impact strength	8.2 KJ/m²

 

4. Printing with Siraya Tech ABS-CF Core 

Nozzle temperature	250-280°C
Build plate temperature	100-110°C
Print Speed	30-200 mm/s	Note that very high speeds may affect the core-shell structure. If surface quality degrades, either increase temperature or reduce speed.
Recommended nozzle diameter	0.4-1.0 mm
Nozzles Material	Hardened steel
Minimum heating block thickness	12mm
Retraction distance	1-3 mm
Retraction speed	1800-3600 mm/min
Build Platform Material	PEI film is recommended	With optional Glue Stick or PVP glue coating for enhanced adhesion
Cooling Fan	Run at 0-20% speed

 

 5. Moisture Management

Carbon fiber reinforced ABS filaments are susceptible to moisture absorption, which can affect print quality. 

(1) Storage

Store the filament in its original moisture-resistant packaging when not in use. Using a dry box with desiccant is recommended for prolonged storage.

(2) Drying Filament

If print quality degradation is observed (bubbles, stringing), dry the filament at 60-70°C for 4-6 hours before printing. Only dry if the filament is damp.

6. Additional Recommendations

1.The core-shell structure maintains stable layer adhesion even at higher printing speeds, but monitor surface quality as very high speeds can disrupt the core-shell structure.

2.The Raft separation distance should be set to 0.18-0.2 mm when using support structures.

3.For optimal results, use 100% infill with ±45° infill angles for functional parts requiring maximum strength.

4.Keep the printer in a well-ventilated area during printing, though this filament has lower odor compared to traditional ABS.

5.The core-shell technology reduces nozzle wear compared to traditional carbon fiber filaments, but hardened steel nozzles are still recommended.