Introduction
Product Overview
The LLL PLUS Buffer is an intelligent filament buffer device designed by Mellow specifically for 3D printers. It is installed between the filament holder and the extruder, automatically adjusting filament tension to reduce feeding resistance and pulling, thereby enhancing the stability of the printing process and the quality of the finished product.
Core Features
Intelligent Buffering, Stable Feeding
The device monitors the pulling force on the extruder in real-time and automatically feeds filament to avoid feeding instability, layer lines, or filament breakage caused by pulling from the distal end.
Filament Runout Detection, Automatic Pause (Requires Configuration)
Built-in sensors can send a signal when the filament runs out or breaks, causing the printer to pause automatically and preventing empty printing.
One-Button Filament In/Out
Easily perform filament loading and unloading operations via the button on the device body, simplifying the threading and filament changing processes.
Usage Overview
- Plug and Play: Connect to a 12V–24V power supply to enable the intelligent buffering function.
- For Filament Runout Detection: Requires connecting the signal wire and configuring it in the printer's firmware.
- Upgradable Firmware: Continuous feature updates, supporting advanced settings such as speed adjustment and current configuration.
Firmware Version Notes
| Version | Main Updates |
|---|---|
| V1.0.3 | Added button combination functions: Single-click forward/backward button controls pin level output; Double-click any button to pause/resume operation. |
| V1.1.1 | Added support for speed control command (speed nnn + line feed). |
| V1.1.2 | Optimized retraction logic: Motor automatically stops after retraction is complete, requires button press or signal trigger to resume. |
| V1.1.3 | Added current configuration functionality. |
| V1.1.4 | Added configuration method for filament runout output status. |