Description
Description
MINGDA AD-F4 Mini — 4-Color Letter & Sign 3D Printer
The MINGDA AD-F4 Mini is a 4-color intelligent fast letter & sign 3D printer built for sign makers:
- Printing Speed: Max. 300 mm/s
- Max Build Volume: 800×600×100 mm
- IMS four-color feeding system
- AI Detection
- MINGDA PI
- Camera & WiFi
- 80°C Heated Bed
- Free Leveling

Klipper & 5X High-Speed
AD-F4 Mini printing speed up to 300 mm/s, 10,000 mm/s² peak acceleration — only 0.035 s to speed up from 0 to 300 mm/s, achieving ultra-high efficient printing.
- 300 mm/s — Travel speed
- 200 mm/s — High-Speed
- 40 mm³/s — Max Flow

Innovator of IMS Four-Color Feeding System
AD-F4 Mini can make LED letter printing more flexible and colorful.

Enclosed Filament Chamber
Effectively reduces moisture-related issues, ensuring stable and reliable long-duration, large-format printing.

Light Box
- Filament: AdPETG Tough
- Speed: 200 mm/s
- Model size: 500×660×40 mm
- Printing time: 10 hours
Compared to most letter 3D printers on the market: Filament PETG, Printing Speed 40 mm/s, Printing Time 50 hrs. * The experimental data is for reference only.

Smarter AI Detection, Easier Printing
Real-time monitoring of the model during printing, supports AI detection of issues such as foreign objects and printing defects.

Proprietary MINGDA PI — Upgraded self-developed computing platform delivers faster response, smoother UI, and improved system stability.

7-inch High-Definition Screen — Deeply integrated with MINGDA’s self-developed main control (PI), delivering faster UI response and a noticeably smoother user experience. More intuitive operation, lower learning curve.

Large Printing Size — 800×600×100 mm

Input Shaper — Minimize vibration patterns and make the surface smoother.

Auto Leveling — The auto-leveling system is faster and more precise, enhancing the first-layer adhesion, saving more time on leveling, and simultaneously increasing the success rate of prints.

Air Heating Bed — Rapid heating with uniform temperature of 80°C+.

New Channel Letter Design Software — MINGDA SignMaker
Available modeling: font generation, vector file reading, 3D model generation. Expected to be twice as fast as the original version. Experience unparalleled creativity with our advanced software, which offers 2D-to-3D conversion, text generation, and the ability to create fonts in various shapes.

Streamlined Sign-Making Workflow — From design to finished letter, MINGDA’s workflow covers every step of channel-letter production.

Mobile App Remote Control — Manage with Ease
Monitor print status and perform basic operations remotely via the mobile app. No need to stay by the machine — stay informed of your print progress anytime, anywhere. Enjoy greater convenience and simpler management.

Product Specifications
| Model | AD-F4 Mini |
| Technical Principle | FFF (Fused Filament Fabrication) |
| Printing Size | 800 × 600 × 100 mm |
| Layer Height | 0.2–0.42 mm (layer height is determined by the standard nozzle size) |
| Filament Diameter | 1.75 mm |
| Printing Nozzle | 4 in 1 out |
| Number of Trays | 4 (Max 1 kg/pcs) |
| Nozzle Diameter | 0.6 mm (optional: 0.4 mm, 0.8 mm) |
| Material Types | AdPETG Tough, PLA, PDS, etc |
| Nozzle Temperature | Max 300°C |
| Hot Bed Temperature | Max 80°C |
| Print Speed | 0.4 mm nozzle: Max 300 mm/s (recommended 200 mm/s); 0.6 mm nozzle: Max 150 mm/s (recommended 120 mm/s) |
| Maximum Power | 2000 W |
| Voltage | 220V |
| Connection | U-Disk, WiFi, Ethernet |
| Screen | 7-inch Integrated Screen |
| Safety Design | Warning light, emergency stop button |
| Regulatory Certification | CE, FCC |
| Slicing Software | SignMaker, MINGDA Slicer |
| Data Type | .dxf .svg .3mf .stl .stp .amf .obj |
| Operating System | Windows / Mac OS |
| Firmware | Klipper |
| Filament Detection | Pause printing |
| Machine Detection | Power-on self-check |
| Printing Detection | AI defect detection |
| Auxiliary Feed | Yes |
| Remote Management | Remote monitoring & control; remote printing |
| Resume Printing | Power loss recovery |
| Cooling System | Air-cooled |
| Motors | Closed-loop stepper motors |
| Leveling Method | Fast auto leveling |
| Printing Platform | Tempered glass platform |
| Filament Tray Design | Sealed filament box |
| Machine Dimensions | 1168 × 888 × 880 mm |
| Package Dimensions | 1270 × 995 × 615 mm |
Note — The shown price excludes tax, which will be calculated during check out.














