Multi Jet Fusion (MJF) is an advanced powder-based 3D printing technology that creates strong, precise, functional parts at high speeds. Developed by HP, MJF 3D printing uses an inkjet array to apply fusing and detailing agents onto powdered material, which is then solidified with thermal heat. This process enables high-speed additive manufacturing without support structures.
What sets full-color 3D printing apart? MJF uniquely supports multi-color models, making it ideal for branding, visual prototypes, and customized products.
Best Applications for MJF Printing
- End-use parts and mechanical components – Strong, durable structural elements
- Full-color prototypes and models – Visual models with branding accuracy
- Automotive and aerospace parts – Heat-resistant, stiff materials
- Medical devices and wearables – Biocompatible custom solutions
How MJF 3D Printing Works
The Multi Jet Fusion process combines powder bed fusion with chemical agents:
- A thin layer of powder is spread over the print bed
- Inkjet array deposits fusing and detailing agents
- Thermal heat fuses the layers together
- Process repeats layer by layer
- Excess powder is removed and post-processing applied
MJF Materials
| Material | Best For | Key Properties |
|---|---|---|
| Full-color Nylon 12 (PA12) | Branding, visual models | Vibrant colors, durable, requires texture file |
| Nylon 12 (PA12) | End-use parts, engineering | Impact-resistant, grey or black |
| PA12 Glass Beads (40%) | High-stiffness applications | Extra stable, reduced warping |
MJF Design Guidelines
| Design Feature | Natural | Smooth |
|---|---|---|
| Maximum bounding box | ( 284 \times 380 \times 380 , \text{mm} ) | ( 210 \times 210 \times 360 , \text{mm} ) |
| Supported walls | 0.4 mm | 1.5 mm |
| Unsupported walls | 0.5 mm | 1.5 mm |
| Supported wires | 0.8 mm | 1.5 mm |
| Clearance | 0.6 mm | 0.7 mm |
Critical MJF design tips:
- Multi-color prints require texture files (GIF, PNG, JPG)
- Add fillets at the base of small pins for strength
- Hollow out models with drainage holes to reduce costs
Why Choose Hi3D’s MJF Printing Service?
Hi3D offers professional MJF-based 3D printing services with a special focus on full-color model production. Our AI image-to-3D model generation capabilities allow you to easily obtain high-precision, MJF-ready design files, significantly shortening the development cycle from concept to physical object.
As a source factory for additive manufacturing, we ensure technology exclusivity and supply stability — no middlemen markups, no unexpected price hikes. Whether you need full-color prototypes for brand visualization or functional nylon end-use parts, Hi3D’s online 3D printing platform delivers high-quality, high-efficiency printing experiences.
Supported file formats: OBJ, STL, 3MF, FBX, GLB, and more (color models require accompanying texture files)
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