Mulit Jet Fusion (MJF) — 3D People UK

Introducing TPU01 MJF! Get flexible, resilient 3D prints with our latest material. Available now!

TECHNOLOGY OVERVIEW

MJF is a new additive manufacturing technology that uses an inkjet printhead to jet droplets of agents onto a fine layer of nylon powder. Lamps heat the agents, fusing particles of plastic powder to build parts one ultra-fine layer at a time. MJF produces highly accurate, functional parts with fine details, sharp edges and a smooth surface. No support structures are needed enabling complex geometries.

MAX PART SIZE
270 x 370 x 370 mm

LEAD TIMES
From 2 Working Days

TOLERANCE
± 0.3% (min: ± 0.15 mm)

MIN PART SIZE
1 x 1 x 8 mm

LAYER HEIGHT
80 microns

MIN WALL THICKNESS
1.0 mm

Use MJF for:

Design Verification

Produce iterations of working prototypes during product development to enhance your design. Validate the functionality with industrial MJF PA12 Nylon before volume manufacturing.

  • Complex Geometries

  • Extreme Precision

  • Prototype matches production

Functional Parts

Multi Jet Fusion produces robust components with isotropic mechanical properties. MJF PA12 Nylon thermoplastic material is durable and well suited for end-use parts.

  • Strong & Durable

  • Repeatable Properties

  • Chemically Resistant

Volume Production

Avoid tooling costs and setup time; start manufacturing right away with MJF. Repeatably produce dimensionally accurate parts for low-volume and high-volume production applications.

  • No Tooling Costs

  • Scalable Volume Production

  • Dimensional Accuracy

 Materials & FINISHES:

MATERIAL

MJF PA12 Nylon

The industry's favourite industrial polymer material. This robust thermoplastic produces high-density parts with excellent mechanical properties and can replace injection moulded alternatives.

AKA. HP 3D High Reusability PA 12, Polyamide,
Nylon 12

 

MATERIAL

MJF Ultrasint TPU01

Flexible and durable thermoplastic polyurethane (TPU) in 88A Shore hardness. Offering excellent impact resistance, energy return, wear performance, and tear resistance.

AKA. HP 3D High Reusability TPU, Thermoplastic Polyurethane

 

FINISH

As Printed

Crisp edges and almost no visible layer lines. The surface has a grainy texture, similar to an extra strong mint.

 

FINISH

Black Dye

Our deep-dye process does not alter the part dimensions. MJF Black Dye 3D prints are black throughout the part.

 

FINISH

Vibro Polished

Remove the grainy texture of MJF parts for a smooth finish. Without additional colouring, the polished grey finish is visually uneven.

 

FINISH

Vapour Smoothed

Vapour Smoothing smooths and seals the surface and reduces crack initiation points, enhancing elongation at break, impact resistance, and fatigue strength.

 

Technical information

HP MJF 5210 3D printers are top of the range machines for polymer additive manufacturing. The HP 3d printer is a high-performance technology that uses a specially engineered multijet fusion pa12 material appropriate for a range of industries. HP multijet fusion provides exceptional production speeds and material reusability resulting in high-quality parts for an economical price. Access to the state of the art technology has never been easier, upload your 3D files to our instant quote tool to use our on-demand 3D printing service.

MJF PA12 Nylon MATERIAL PROPERTIES

This data is for MJF PA12 printed on MJF 5210 machinery. The properties may vary depending on part geometry and print orientation, therefore the values are a good guideline but can not be guaranteed.

DENSITY (g/cm3)
1.01

POWDER PARTICLE SIZE (µm)
60

TENSILE STRENGTH (MPa)
48

TENSILE MODULUS (MPa)
1800

ELONGATION AT BREAK XY (%)
20

ELONGATION AT BREAK Z (%)
15

FLEXURAL STRENGTH XY (MPa)
65

FLEXURAL STRENGTH Z (MPa)
70

FLEXURAL MODULUS (MPa)
1730

IMPACT STRENGTH NOTCHED IZOD (j/m)
3500

HEAT DEFLECTION @ 0.45MPa (C)
175

HEAT DEFLECTION @ 1.82MPa (C)
95

Multi Jet Fusion FAQ:

+ HOW DOES MULTI JET FUSION WORK?

Multi Jet Fusion (MJF) operates by spreading a fine layer of nylon powder within the build chamber. The MJF 5210 3D printer uses print heads to jet detailing and fusing agents onto the powder, creating a 2D cross-section of the desired part. Heat lamps then activate the agents, fusing the PA12 nylon powder into a solid layer. This process repeats, adding new layers of powder to build the 3D part layer by layer.

+ ARE MULTI JET FUSION PA12 NYLON 3D PRINTS WATERTIGHT?

Yes, 3D prints produced using HP Multi Jet Fusion technology are nearly watertight right after printing. They typically do not require additional post-processing to achieve a high degree of water resistance.

+ WHAT IS THE DIFFERENCE BETWEEN SELECTIVE LASER SINTERING (SLS) AND MULTI JET FUSION (MJF)?

The primary distinction between Selective Laser Sintering (SLS) and Multi Jet Fusion (MJF) lies in the method of fusing the powder material into parts. SLS employs a laser for this purpose, while MJF uses agents and heat lamps. Notable differences include the natural grey colour of MJF 3D prints compared to the white colour of SLS 3D prints. Additionally, these technologies utilise different pricing algorithms. For a more detailed comparison, you can refer to our blog post on Selective Laser Sintering (SLS) versus Multi Jet Fusion (MJF).

+ WHAT ARE THE ADVANTAGES OF MULTI JET FUSION OVER OTHER 3D PRINTING TECHNOLOGIES?

Multi Jet Fusion (MJF) offers several advantages over other 3D printing technologies. These include high speed, precise printing, the ability to produce functional and durable parts with excellent mechanical properties, and the capability to create parts with fine details and complex geometries. Additionally, MJF typically results in minimal post-processing requirements.

+ WHAT INDUSTRIES AND APPLICATIONS ARE SUITABLE FOR MULTI JET FUSION?

Multi Jet Fusion is suitable for a wide range of industries, including aerospace, automotive, healthcare, consumer goods, and more. It can be used to produce prototypes, end-use parts, custom medical devices, and various components in industries that require precision and durability.

+ WHAT IS THE RESOLUTION AND LAYER THICKNESS ACHIEVABLE WITH MULTI JET FUSION?

The resolution and layer thickness achievable with Multi Jet Fusion can vary depending on the settings. Generally, MJF achieves a layer thickness of 0.08 millimetres (80 microns), allowing for high-quality and detailed 3D prints. At 3D People we only print on the finest layer height possible with MJF.

+ ARE THERE ANY SIZE LIMITATIONS FOR PARTS THAT CAN BE PRODUCED USING MULTI JET FUSION TECHNOLOGY?

While Multi Jet Fusion technology is versatile and can produce parts of various sizes, there may be limitations based on the MJF printer's build volume. The maximum size of parts that can be produced are 370 x 370 x 270mm however we wouldn't recommend printing parts this size if your component requires tight tolerances, or an even surface finish. `

 

Team

Bradley Humphrey

Technical Consultant

Felix Manley

Account Manager

Our goal is to help your business grow with the use of 3D printing. Contact our team for a technical consultation and support in ordering from our SLS Service.

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MJF DESIGN GUIDE

Here you can check your designs meet the guidelines for our HP Multi Jet Fusion machines. We have provided information for each technology to help you produce the best parts when using our service. The aptly named, Design Guide, is not a rule book and in some instances, parts with geometries that fall outside of the bounds may print successfully. However, for best results, please use the guide.