MINGDA AD-F4 4-Color Channel Letter & Signage 3D Printer

The MINGDA AD-F4 is the world's first high-speed 4-color 3D printer built specifically for channel letter and 3D signage production. Designed for sign makers and signage manufacturers, it combines speed, precision, and full-color capability to transform the way LED letters and custom signs are made. With a massive 1200 × 800 × 100 mm build volume, an exclusive IMS 4-color automatic feeding system, and print speeds up to 5X faster than conventional machines, the AD-F4 lets you produce large-scale, multicolor channel letters and full 3D signs in a single automated process — no manual color changes, no compromise on detail.

Why the AD-F4 stands out

• 4-Color IMS Automatic Feeding — The exclusive Intelligent Multi-color System feeds up to 4 colors and switches automatically mid-print, enabling multicolor letters, gradients, and branded designs no conventional printer can match.
• Massive Signage Build Volume — 1200 × 800 × 100 mm lets you print extra-large channel letters and full sign layouts in one piece.
• 5X Faster Printing — Up to 300 mm/s with 10,000 mm/s² peak acceleration (0 to 300 mm/s in just 0.035s) and 40 mm³/s max flow for high-volume production.
• High-Temperature Nozzle — Reaches up to 350°C for compatibility with a wide range of signage filaments; air-heated glass build plate reduces warping and improves adhesion.
• Smart & Automated — 3rd-generation auto-leveling, filament auto-feed, remote control & monitoring, and Klipper firmware for smooth, high-accuracy output.
• Free Sign-Making Software — MINGDA's self-developed software handles font generation, vector file reading, and 3D model generation for fast, free modeling.

Technical Specifications

For a complete production workflow, the AD-F4 pairs with the MINGDA MD-C02 UV curing machine, which cures printed signage parts for smooth, installation-ready finishes.