SUNLU FC01 1.75 mm, 143 g Filament Joining System, Black

The SUNLU FC01 1.75 mm filament joining system is a thermal splicer designed to fuse loose ends of 3D printer filament into a continuous strand. It lets users recover short leftover pieces and reduce material waste across printing projects. A secondary function enables colour transitions by joining different filament segments together. It functions as a standalone filament-processing accessory rather than a direct printer attachment, and users can consolidate partial spools into longer, usable lengths without interrupting long print jobs.

The hardware features thermal insulation and a user interface intended to simplify operation for home users and professional workshops alike. A quick-start guide accompanies the device to facilitate initial setup. Compatibility extends to the most common FDM and FFF thermoplastics, specifically PLA, ABS, PETG, PCL, PA, and PC. This broad material support allows the splicer to integrate easily into existing desktop fabrication setups. It ships as a single unit in standard packaging.

• Supported filament diameter: 1.75 mm
• Maximum temperature rating: 240 °C
• Standard operating temperature: 185 °C
• Heat-up duration: approximately three minutes
• Device footprint: 111 × 79.4 × 38 mm
• Device weight: 143 g
• Country of origin: China