Multi Jet Fusion (MJF)
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The Complete Guide to 3D Printing Plastic Parts with Multi Jet Fusion

What Is MJF?

Multi Jet Fusion is a powder bed fusion 3D printing process that, unlike Selective Laser Sintering (SLS), does not use a laser. Learn more about How MJF Works.

Materials

3D print parts with Nylon 12 PA using Multi Jet Fusion. Get a Quote, Get Design Services, or use our Material Wizard to get additional answers about making your part with MJF.

Applications

The most common applications of Multi Jet Fusion are Production Parts, Housings and Functional Prototyping.

Solutions

Our team has decades of experience with 3D printing and knows how to use Multi Jet Fusion to make your specific application. Contact an Engineer to start your project.

Resources

Check out our Making Better Production Parts article, our MJF Design Guide, and our MJF Webinar about Multi Jet Fusion in a manufacturing environment.

FAQs

Got questions about Multi Jet Fusion? We've got answers.

What Is Multi Jet Fusion?

an engineer holds a plastic part 3d printed with multi jet fusion in his handsMulti Jet Fusion is a new 3D printing technology, offering you more possibilities for complex, lower-cost parts.

Whether used in serial production for single parts or batch manufacturing by shipsets of multiple part numbers, Multi Jet Fusion offers a faster, more cost-effective process for 3D printed parts.

Multi Jet Fusion is ideal for hidden applications like complex thin-wall ductwork, connectors, non-cosmetic housings, brackets, covers, wiring clips, guides and grommets.

Industries like transportation can take advantage of the higher volumes possible with this technology, especially for limited run, pre-production and spare parts.

How Multi Jet Fusion Lowers Costs 

The Multi Jet Fusion process is ideal for building in batches to achieve lower unit pricing, while adding increased functional design complexity. Material costs are associated with part volumes, not part extents volumes, saving costs when compared to Laser Sintering or CNC Machining.

Manufacturing cycle-time for Multi Jet Fusion is driven by the height of the particular batch of parts being printed. Nesting parts together in a single batch is the way to reduce the average cycle-time per unit.

Improved Performance with Multi Jet Fusion

Multi Jet Fusion delivers repeatable, isotropic mechanical properties with greater strength and higher accuracy than Laser Sintering.

How Does Multi Jet Fusion Work?

a black duct 3d printed with multi jet fusion technologyThe Multi Jet Fusion process starts with a layer of material applied to the work area.

In the opposite direction, in one continuous pass, the machine prints fusing and detailing agents across the full working area.

This pass combines the printing with the fusing energy, and the process is completed.

The innovative technology prints quickly along the bed width, enabling extreme precision and dimensional accuracy.

Multi Jet Fusion Materials

Multi Jet Fusion currently offers Nylon 12 (PA 12), a strong thermoplastic material well-suited for high-volume functional prototyping and low-volume production applications.

PA 12 is just the beginning of what promises to be an extensive suite of material offerings. Stratasys Direct Manufacturing will be at the forefront of introducing new Multi Jet Fusion materials to our customers.

Materials for 3D Printing Parts with MJF

Stratasys Direct Manufacturing will be at the forefront of introducing new Multi Jet Fusion materials to our customers as they are developed.

Material

Description Benefits Applications Properties

Nylon 12 PA

Discover enhanced production possibilities of Nylon 12 (PA 12) utilized with the speed possible with Multi Jet Fusion. With good chemical resistance and low moisture absorption, Nylon 12 is ideal for high-volume functional prototypes & limited-run production.

  • Best surface resolution/feature details with powder bed fusion technology
  • Fully dense and nearly isotropic mechanical properties
  • Excellent chemical resistance to oils, greases and other hydro-carbons
  • Low unit cost for batches of smaller parts
  • Vehicles electronic system housings, guides, grommets, clips, connectors & covers
  • Vessels for fuel, oil housings and washer fluid
  • Environmental control system components like fan housings, plenums, ducting, valves, diverters and vents
DATASHEET

Get a Quote

Ready to make your part with MJF? Upload your CAD file now to select your material and generate an instant quote.

Get a Quote

Get Design Services

Need some assistance with your 3D design? Our design services team offers a suite of solutions, including file creation and file repair.

Get Design Services

Use Material Wizard

Want to compare material properties? Use our material wizard to find out which materials meet your part's requirements.

Use Material Wizard

Multi Jet Fusion Applications

multi jet fusion production parts

Production Parts

Multi Jet Fusion production parts are dense, strong, have fine detail and high dimensional accuracy.

Read More

multi jet fusion housings

Housings

With good mechanical properties and the ability to handle complex shapes, Multi Jet Fusion parts are good for internal, non-cosmetic housings.

Read More

multi jet fusion functional prototyping

Functional Prototyping

Multi Jet Fusion is an ideal technology for complex components needed in functional prototyping.

Read More

Trusted Precision with Multi Jet Fusion

a multi jet fusion engineer examines a 3d printed partPrecise Multi Jet Fusion parts result from more than machine operations; they take a team of experts dedicated to the technology.

At Stratasys Direct we took months to validate Multi Jet Fusion in order to ensure perfect parts, every time.

Our quality systems ensure consistent handling and recycling of materials along with machine maintenance and process control limits.

This provides material traceability, mechanical property verification, dimensional and other performance criteria checks to ensure the parts we deliver meet customer specifications repeatedly.

AM Expertise with Multi Jet Fusion

Our services are backed by nearly thirty years in the industry and a team of engineers ready to assist with every step of your project. With quality certifications ISO 9001 and AS9100 and ITAR registration, we won’t rest until your project requirements are met.

Not sure where to start? Our experts are here to help.

Contact an Engineer

Multi Jet Fusion Resources

multi jet fusion

Making Better Production Parts

Multi Jet Fusion's utilization in a manufacturing environment.

After months of careful validation of the technology in our robust manufacturing facilities, we’re excited to offer Multi Jet Fusion for production parts.

Read the Article
multi jet fusion design guideline

Multi Jet Fusion Design Guideline

Learn more about the specific considerations to optimize designs for Multi Jet Fusion.

Learn more about the specific considerations to optimize designs for Multi Jet Fusion.

Download Design Guideline
multi jet fusion

Multi Jet Fusion in a Manufacturing Environment

How does Multi Jet Fusion perform in a production environment?

Discover the results of a process qualification study that highlights Multi Jet Fusion’s performance claims against the demands of a real production environment, including repeatability and cost-effectiveness in this recorded webinar.

Watch the Webinar

Frequently Asked Questions About Multi Jet Fusion

a woman examines a part 3d printed using the multi jet fusion processWhat geometries are best suited for MJF?

JF is ideal for components with complex geometries, including parts with internal cavities. Parts that are produced with JF remain encased in powdered material, which is self-supporting.

What level of detail can be obtained with MJF?

Typical Multi Jet Fusion layer thickness is 70 microns (0.003 inch). We recommend all Multi Jet Fusion parts have a minimum wall thickness (or feature resolution) of 0.020”.

What is the largest part size you can make with MJF?

The build envelope for the Multi Jet Fusion machine is 16” x 12” x 16”.

Because of the need to scale parts larger to compensate for in-process material shrinkage and also add a buffer around parts for printing agents, the maximum part size is 14.96” x 11.25” x 14.96”.

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