1. Bubuka
The SUNLU FC01 Filament Connector is an innovative fusion splicer designed to efficiently join 1.75mm 3D printer filaments. This device helps minimize waste by allowing the use of leftover or broken filament pieces, enabling multi-color printing, and ensuring smooth, uninterrupted printing processes. Its user-friendly design and precise temperature control make it suitable for both beginners and experienced 3D printing enthusiasts.

2. Émbaran Kasalametan
- Salawasna anggo alat ieu di tempat anu gaduh ventilasi anu saé.
- The device heats up to high temperatures (up to 240°C). Avoid direct contact with heating elements during operation.
- Despite advanced insulation, the external temperature may reach 50-100°C during fusion. Exercise caution.
- Ensure the power adapter meets the specified requirements (5V 2A). Using an adapter with insufficient current may cause slow heating or device malfunction.
- Do not use power adapters incompatible with Qualcomm QC3.0 and above (excluding QC3.0) or USB PD2.0 and above versions. Multi-functional charging plugs may also be incompatible.
- Jauhkeun alat tina bahan anu gampang kaduruk sareng cairan.
- Ulah nyobian ngabongkar atawa ngaropéa alat.
- Jauhkeun tina jangkauan barudak.
3. Eusi Paket
Upon opening your SUNLU FC01 Filament Connector package, you should find the following items:
- SUNLU FC01 Filament Connector Device
- Kabel Daya USB (Adaptor daya teu kalebet)
- Teflon Tubes (quantity may vary, typically 1 or 2 sets, approximately 300 pieces)
- Manual pangguna (dokumén ieu)

4. Spésifikasi
| Fitur | Rincian |
|---|---|
| Nomer modél | FC01 |
| Jinis barang | Mechanical Kit / Hardware Parts |
| merek | SUNLU |
| Asalna | Daratan Cina |
| Input kakuatan | AC 5V 2A |
| Compatible Filament Diameters | 1.75±0.03mm |
| Filamén cocog | PLA, ABS, PETG, PCL, PA, PC 3D Materials |
| Suhu Max | 240 ℃ |
| Toleransi Suhu | ±3°C (between display and actual temperature) |
| Pakét Panjang | 15 cm |
| Bungkusan Lebar | 15 cm |
| pakét Jangkungna | 10 cm |
| Beurat pakét | 0.4 kg |

5. Setélan
- Buka bungkus Alat: Carefully remove the FC01 Filament Connector and all accessories from its packaging.
- Sambungan Daya: Connect the provided USB power cable to the FC01 device. Plug the other end into a compatible power adapter (not included). Ensure the power adapter provides at least 5V 2A. Using a lower current adapter may prevent the device from powering on or heating correctly.
- panempatan: Place the device on a stable, heat-resistant surface, away from any flammable materials.
- Daya mimiti Hurung: Press the power button to turn on the device. The display screen should illuminate, indicating it's ready for operation.
6. Parentah Operasi
Follow these steps to fuse your 3D printer filaments:
- Prepare Filaments: Ensure both ends of the filaments you wish to fuse are cut cleanly and are free from debris. For optimal results, it is recommended to dry damp filaments before bonding.
- Select Filament Type: On the FC01's display, use the control buttons to select the appropriate filament material (e.g., PLA, ABS, PETG). The device will automatically set the default melting temperature for the selected material.
- Insert Filaments: Open the top cover of the FC01. Carefully insert one end of the first filament into the left slot and the other end of the second filament into the right slot. Ensure they are fully inserted and meet in the middle heating chamber.
- Close and Start Fusion: Close the top cover firmly. The device will begin heating to the selected temperature. The display will show the current temperature and target temperature.
- Tungguan Beep: The device will heat up (e.g., PLA takes about 3 minutes to reach 185°C). Once the fusion time is reached, the machine will emit a beep sound, indicating the process is complete.
- Remove Fused Filament: After the beep, carefully open the top cover. Gently pull the newly fused filament out of the device. Allow it to cool for a few seconds before handling further.
- Pariksa Sambungan: Check the fused joint for strength and smoothness. If necessary, trim any excess material or repeat the process if the bond is not satisfactory.



6.1. Video Tutorial
Watch this video for a visual guide on how to use the SUNLU FC01 Filament Connector:
7. Pangropéa
- beberesih: Ensure the device is powered off and completely cooled before cleaning. Use a soft, dry cloth to wipe the exterior. If there is any filament residue in the heating chamber, gently remove it with a non-abrasive tool. Do not use liquids or harsh chemicals for cleaning.
- Panyimpenan: Store the FC01 in a cool, dry place, away from direct sunlight and excessive humidity. Keep it in its original packaging or a protective case when not in use to prevent dust accumulation and damage.
- Teflon Tubes: Replace Teflon tubes as needed if they become worn or damaged, as they are crucial for guiding the filament smoothly.
8. Cara ngungkulan
| Masalah | Mungkin Cukang lantaranana | Solusi |
|---|---|---|
| Device does not power on or heats slowly. | Insufficient power input from adapter. Incompatible charger. | Ensure your power adapter provides at least 5V 2A. Avoid using Qualcomm QC3.0+ or USB PD2.0+ chargers, or multi-functional charging plugs. Try a different compatible power source. |
| Poor fusion quality (weak joint, rough surface). | Filament is damp. Incorrect temperature setting. Filaments not properly aligned. | Dry your filament before use. Ensure the correct filament type is selected on the device. Make sure both filament ends are inserted cleanly and meet in the heating chamber. |
| Filament gets stuck. | Residue in the heating chamber. Damaged Teflon tubes. | Clean the heating chamber after the device has cooled. Check and replace Teflon tubes if they are worn or damaged. |
9. Tips pamaké
- For best results, always ensure your filaments are dry before splicing. Damp filament can lead to weak or inconsistent bonds.
- While the device is compatible with a range of materials, always verify that the specific filament type (e.g., PLA, ABS, PETG, PCL, PA, PC) is supported and selected correctly for optimal fusion. The device is not designed for materials like TPU or recycled PET bottle filament.
- Experiment with different fusion times within the recommended range for your specific filament brand to find the perfect bond.
- Keep a supply of spare Teflon tubes, as they are essential for smooth filament feeding and can wear out over time.
10. Garansi jeung Rojongan
The SUNLU FC01 Filament Connector comes with a standard manufacturer's warranty. For detailed warranty terms, technical support, or service inquiries, please refer to the official SUNLU website or contact your retailer. Please have your product model number (FC01) and purchase information ready when contacting support.