1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of the BIQU H2 Direct Extruder Upgrade Kit for the Hurakan 3D Printer. This kit enhances your 3D printing capabilities with a direct drive extruder system, automatic bed leveling, and efficient cooling.
Product Overview
Image 1.1: The BIQU H2 Direct Extruder Upgrade Kit, fully assembled, showcasing its compact design and integrated components.
What's in the Box
Image 1.2: A visual representation of all items included in the BIQU H2 Direct Extruder Upgrade Kit package.
- H2 Direct Extruder Upgrade Kit x1
- Package Box x1
- User Manual x1 (This document)
- BTT Duck x1
- Zip Ties x3
- Wrench Set x1
- I.D.2×O.D.4×20mm PTFE Tube x1
2. Setup and Installation
The BIQU H2 Direct Extruder Upgrade Kit is designed for straightforward installation on the Hurakan 3D Printer. Ensure your printer is powered off and disconnected from the mains before beginning installation.
Installation Steps
- Prepare the Printer: Power off your Hurakan 3D printer and disconnect it from the power source. Carefully remove the existing extruder assembly.
- Mount the Kit: Fix the H2 Direct Extruder Upgrade Kit directly onto the Hurakan's compatible X carriage. Ensure all mounting screws are securely fastened.
- Connect Wiring: Connect the necessary cables from the new extruder assembly to the Hurakan's mainboard. This step may require some experience with 3D printer wiring. Refer to the Hurakan's mainboard documentation for specific pinouts if needed.
- Initial Checks: After installation, perform a visual inspection to ensure all components are correctly seated and cables are not pinched.
Image 2.1: Diagram illustrating the direct mounting of the H2 Extruder Upgrade Kit onto the Hurakan 3D printer's X carriage.
3. Key Features and Components
The BIQU H2 Direct Extruder Upgrade Kit integrates several advanced components to optimize your 3D printing experience.
BIQU H2 V2S Direct Drive Extruder
This extruder features a dual-gear system with a 7:1 ratio, providing a strong 770N extrusion force. An adjustable tensioner allows for precise control over filament grip, making it highly versatile for various filament types, including flexible materials like TPU.
Image 3.1: The BIQU H2 V2S Direct Drive Extruder, highlighting its key features such as lightweight design, high-temperature printing capability, bi-metal heatbreak, quick release lever, and cooling fan.
BIQU MicroProbe V2
The MicroProbe V2 simplifies bed leveling by enabling automatic bed leveling. This feature contributes to a smoother and more streamlined printing process, ensuring consistent first layers.
Image 3.2: The BIQU MicroProbe V2, illustrating its lightweight design, long lifespan, and high precision for bed leveling.
BIQU 4020 Blower Fan
The integrated 4020 blower fan and duct provide rapid cooling at 8000 RPM. This efficient cooling solidifies the extruded filament quickly, leading to improved print quality and precision.
Image 3.3: The 4020 blower fan in operation, demonstrating its role in cooling the printed object for enhanced precision.
Component Overview
Image 3.4: A composite image showing the individual key components: H2 V2S Extruder, MicroProbe, Hurakan Compatible X Carriage, and 4020 Part Cooling Fan.
4. Operation
Operating the BIQU H2 Direct Extruder Upgrade Kit involves standard 3D printing procedures, with enhanced capabilities due to the direct drive system and automatic leveling.
Filament Loading
Due to the direct drive design and quick release lever, loading and unloading filament is simplified. Insert the filament into the extruder's input port and guide it until it engages with the dual gears. The adjustable tensioner allows for optimal grip on various filament diameters.
Automatic Bed Leveling
Utilize the BIQU MicroProbe V2 for automatic bed leveling. Initiate the bed leveling sequence through your printer's control interface. The MicroProbe will accurately map the print surface, compensating for any irregularities and ensuring a perfect first layer.
5. Maintenance
Regular maintenance ensures the longevity and optimal performance of your BIQU H2 Direct Extruder Upgrade Kit.
- Nozzle Cleaning: Periodically clean the nozzle to prevent clogs and ensure consistent extrusion.
- Extruder Gears: Inspect the dual-drive gears for any filament debris and clean them as needed.
- Cooling Fan: Ensure the 4020 blower fan is free from dust and obstructions to maintain efficient cooling.
- PTFE Tube: Check the PTFE tube for wear or damage and replace if necessary.
6. Troubleshooting
This section addresses common issues you might encounter with the BIQU H2 Direct Extruder Upgrade Kit.
- Extrusion Issues (Under/Over-extrusion):
Check filament tension using the adjustable tensioner. Ensure the nozzle is not clogged. Verify print settings (flow rate, extrusion multiplier) in your slicer software.
- MicroProbe Not Deploying/Incorrect Readings:
Ensure all wiring connections to the MicroProbe are secure. If the probe is mounted too high, preventing proper deployment or causing the nozzle to hit the bed first, adjust its mounting position. Some users have found it necessary to slightly modify mounting holes for optimal adjustment.
- Cooling Fan Noise/Malfunction:
Inspect the 4020 blower fan for any obstructions or damage. If the fan exhibits unusual noise or fails to operate, it may require replacement.
- Temperature Reading Errors (e.g., Thermistor Issues):
Verify the thermistor wiring connections. A faulty thermistor can lead to incorrect temperature readings, potentially preventing heating or causing thermal runaway errors. If issues persist, the thermistor may need replacement.
- General Wiring Concerns:
Incorrect or loose wiring to the mainboard can cause various issues. Double-check all connections against your Hurakan's wiring diagram. If you are unsure, consult with experienced users or technical support.
7. Specifications
| Feature | Detail |
|---|---|
| Extruder Type | BIQU H2 V2S Direct Drive Dual-Gear Extruder |
| Extrusion Force | 770N (with 7:1 gear ratio) |
| Auto-Leveling Sensor | BIQU MicroProbe V2 |
| Cooling Fan | BIQU 4020 Blower Fan (8000 RPM) |
| Compatibility | Hurakan 3D Printer (with compatible X carriage) |
| Item Weight | 14.1 ounces (approximately 400 grams) |
| Package Dimensions | 3.93 x 3.93 x 2.75 inches |
Image 7.1: Detailed dimensions of the BIQU H2 Direct Extruder Upgrade Kit.
8. Warranty and Support
BIQU provides technical support for the H2 Direct Extruder Upgrade Kit. If you encounter any problems during the use of the product, please contact the manufacturer or seller for assistance. Installation instructions and firmware configuration guidance are typically provided with each kit or available through official support channels.
For specific warranty details, please refer to the documentation included with your purchase or contact BIQU customer service directly.
