PolyJet
PolyJet Material Jetting
PolyJet jets and UV-cures droplets of photopolymer, mixing rigid, flexible, clear and colored materials in one build. The process of choice for realistic prototypes, overmold simulation, and medical models.
How PolyJet works
- 01
Print heads jet photopolymer droplets like a 2D printer.
- 02
UV lamps cure each pass instantly.
- 03
Gel support fills overhangs and cavities.
- 04
Support is water-jetted away after the build.
Strengths
- Multi-material builds
- 16-micron layers
- Rubber-like + rigid combined
- Smooth surfaces
Limitations
- Higher cost
- Moderate strength
- Indoor use unless coated
Design rules for PolyJet
Full guidance in the interactive design guide.
| Minimum wall (unsupported) | 0.6 mm |
| Minimum wall (supported) | 0.4 mm |
| Minimum hole diameter | 0.5 mm |
| Minimum feature size | 0.2 mm |
| Moving-part clearance | 0.3 mm |
| Minimum embossed text | 0.8 mm height, 0.3 mm depth |
| Overhang threshold | Soluble support handles any geometry |
| Max build dimensions | 490 × 390 × 200 mm |
- Digital materials blend Shore A30 to rigid in a single part.
- Soluble support enables complex internal channels.
- Best-in-class for painted-look presentation models.
Compare with other processes
All technologiesFDM / FFF
Fast, economical thermoplastic parts for prototypes, jigs and fixtures.
± 0.2 mm typical · 350 × 350 × 350 mm
SLA
High-detail resin parts with smooth, injection-molding-like surfaces.
± 0.1 mm typical · 300 × 335 × 200 mm
SLS
Strong, isotropic nylon parts with no supports — built for end use.
± 0.3 mm typical · 330 × 330 × 400 mm