What is Polyjet?
Polyjet is a 3D printing process which is used for rapid prototyping and additive manufacturing. The Polyjet 3D printing process is unique among 3D printing technologies for its range of complex printers which are capable of using multiple materials simultaneously to build a single part.
Our Polyjet 3D printing service is a highly versatile process and offers a cost-effective and fast way to achieve aesthetically appealing prototype parts, at pre-production stage.
Polyjet 3D printing is also ideal for short-run additive manufacturing of production parts.
When should Polyjet be used?
Polyjet is ideal for 3D parts where more than one material will be required.
Examples include parts where an outer layer of softer, more flexible material is needed.
These layers can be ‘overprinted’ in different materials to give a range of properties, features, thicknesses and harnesses.
Small numbers of very accurate parts can be created quickly for both prototyping and production purposes.
Our in-house Polyjet printing facilities
We have a Stratasys Objet 260 Connex 3 multi-material 3D Printer.
The Objet260 Connex 3’s triple-jetting technology makes it possible to use a combination of materials and – as a result – a range of properties and finishes.
The Polyjet Process
Polyjet printing is a 3D printing process that sprays small droplets of photopolymer material on to the build platform where they are instantly cured using ultraviolet light. The part outline takes shape in layers from the platform upwards.
The unique aspect of Polyjet printing is that the printers have two or more spray heads, which can be used to combine different materials and overprint in the same build.
The process results in a solid, plastic part of fine and accurate detail with a smooth surface and a range of properties including varying levels of translucency, rigidity, thermal resistance and Shore A values.
Parts can be finished by smoothing and painting, and are hard enough to be drilled or tapped. The support material can be quickly and easily removed.
Benefits and technical details
Polyjet is an increasingly popular rapid prototyping technology and is one of the most versatile of all of the RP processes. It offers a broad range of part properties:
- Rigid to flexible properties
- Thermal resistance
- High level of feature complexity
- Smooth surface finish
- Ultra-thin layers ideal for overprinting
- Parts can be drilled and tapped, sanded and painted
Used widely in the automotive, aerospace, consumer goods, electronics and medical sectors, this process is capable of producing highly accurate parts.
Cost-effective small part runs: Small numbers of parts can be produced quickly.
Multi-material parts: multiple materials can be used in printing of a single part on a single job, producing a range of part properties.
End-product match: due to the range of materials and multi-material capabilities of the process, parts can be matched precisely to the look and feel of complex products.
Precision: ultra-thin 16-micron layer printing delivers fine detail parts with smooth surfaces, thin walls and complex shapes to 0.1 mm accuracy.
Maximum build size: (XYZ) 255 x 252 x 200 mm (10.0 x 9.9 x 7.9 in.)
Resolution X-axis: 600 dpi; Y-axis: 600 dpi; Z-axis: 1600 dpi
Accuracy: 20-85 microns for features below 50 mm; up to 200 microns for full model size
Minimum layer thickness: horizontal build layers as fine as 16 microns (.0006 in.)
Build modes digital material: 30-micron (.001 in.) resolution
High quality: 16-micron (.0006 in.) resolution
High speed: 30-micron (.001 in.) resolution
The Polyjet materials we offer allow us to offer parts with the following properties:
- Rigid opaque
- Simulated polypropylene
- Rubber-like – Shore A 30 > 95
Each part is manufactured with either a primary material or a primary and secondary material.
Where two materials are used, they are mixed to generate different levels of tensile strength, elasticity, flexural strength and temperature durability.
Inside our suite
Take the 60-second tour of our suite…
Take the tour
We encourage our customers to visit our prototyping bureau in Royston so we can show our full range of services and answer any questions you may have about your next project. If you would like to arrange a tour, please contact us.
We offer a range of finishing options on 3D printed parts. Please visit our Finishing page for more information.
Our service levels are designed to help you meet tight timescales or economy budgets.
We offer four service levels for 3D Printing.
We offer four service levels for CNC Machining.
Ready to start your next prototype project?
Prototype Projects is a UK-based prototyping bureau delivering high-quality prototype parts in fast turnaround times.
Contact us on 01763 249760 to discuss your next prototype project.
Your parts. Your speed.
3D Printing: Next day dispatch: we offer a next day dispatch service for SLA, SLS, FDM, Polyjet and Figure 4 3D printed parts. Super-economy: use our My 3D AM service for instant quoting and ordering of SLS and SLA parts which are not urgent.
CNC Machining: Express (3-5 days): for CNC Machined parts for dispatch in 3-5 days, subject to criteria. We also offer Standard, Economy and Super-Economy service levels.