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MJF

Multi Jet Fusion 3D printing

For fast, quality results, Multi Jet Fusion (MJF) is unparalleled as a 3D printing process. It’s able to produce functional nylon prototypes and end-use production parts in a single day, featuring quality surface finishes and fine feature resolution. It also offers more consistent mechanical properties than similar processes like selective laser sintering.

Using an inkjet array to repeatedly apply fusing agents across a bed of nylon powder, followed by fusion into a solid layer via heating elements, MJF is able to offer complex and detailed features. Protalab offers a commercial-grade unfilled Nylon 12 material to create durable parts. Multi Jet Fusion offers a fast and advanced way to create parts on demand. Discover more with this short video.

Direct metal laser sintering (DMLS), also called selective laser sintering (SLS), is a type of metal additive manufacturing or 3D printing. It’s used for both for rapid prototyping and mass production of metal parts.

The method is very similar to selective laser melting (SLM), also called direct metal laser melting (DMLM), but on a molecular level, the powder is only sintered (not melted) together. This results in parts that are more less porous than the melting method. The advantage to this is that you can easily print from alloys containing materials with different melting points. You can even combine metal and plastic materials. A good example is Alumide, which is a mixture of nylon powder + aluminum powder.

REQUIREMENTS SPECIFICATIONS
Maximum build size 381 x 330 x 460mm
Standard lead time 5-7 business days
Dimensional accuracy +/-0.3mm
Layer thickness 100 μm
Infill Not required

Over Multi jet
Fusion 3d
Printing Capability

pa11-3d-printed-parts

Benefits of Multi Jet Fusion 3D printing

  • chevron-right-24Fine minimum feature size
  • chevron-right-24Accelerated build time
  • chevron-right-24More consistent isotropic mechanical properties in the
  • chevron-right-24Z build direction when compart to other additive processes
  • chevron-right-24Improved surface roughness

Over Multi jet
Fusion 3d
Printing Material

REQUIREMENTS SPECIFICATIONS
Maximum build size 381 x 330 x 460mm
Standard lead time 5-7 business days
Dimensional accuracy +/-0.3mm
Layer thickness 100 μm
Infill Not required

Multi Jet Fusion Design Considerations

Thin-walled or large, flat surfaces should be reinforced with ribs or gussets, and holes surrounded with raised bosses wherever possible. Raised text and cosmetic part features smaller than 0.5mm might not survive secondary post-processing.

Check the design for manufacturability analysis that accompanies your part quote for details.

Wall thicknesses from 2.5 - 6.0 mm are ideal.

MJF does a great job with assemblies, living hinges, snap fits, and pin hinges.

As with any 3D printing process, MJF produces somestair-stepping on oblique angles.

Cosmetic surfaces should be clearly identified on the part drawing or digitally in the product manufacturing information (PMI), so Protolabs can attempt to orient the parts in the build chamber accordingly.

PA 12 Black is water and airproof without further treatment. It also has near isotropic mechanical properties.

Ultrasint™ TPU01 is flexible, durable, with tear and abrasion resistance. It also has high chemical resistance, impact resistance and high UV resistance. It is a great candidate for the automotive industry and sporting products.

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Achieve
complex geometries
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No tooling,
reducing cost
Strong and
durable components
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High accuracy
and fine details
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OTHER 3D PRINTING SERVICES
FDM

Fused Deposition Modeling (FDM) also known as Fused Filament Fabrication (FFF), is a quick and cost-effective way of producing parts out of thermoplastics. FDM is the most widely used 3D printing technology. It is suitable for the production of functional parts, Concept prototypes, form and fitment prototypes, Batch production.
SLA

SLA is best suited for applications where high detail or high accuracy is required. Create high fidelity prototypes/ functional parts for medical, dental, Automotive, jewelry, casting, etc. Tough Resin(ABS-like), Flexible Resin(Elastomers), High-Temperature Resin, are some of the most used materials for SLA 3d printing.



SLS

Selective Laser Sintering (SLS) uses synthetic thermoplastic polymers, such as nylons. SLS is suitable for affordable batch production, complex geometries, or for producing strong parts. Parts produced using SLS are porous, and have decent mechanical strength. PA2200 is the most widely used material for this process.
DMLS

Direct Metal Laser Sintering (DMLS) and Selective Laser Melting (SLM) are both used in the production of metal parts with excellent physical and mechanical properties. Suitable for Complex geometries of metal, creating Lightweight metal parts. A variety of superalloys/metals can be 3d printed using this process.
Polyjet

One of the fastest 3D printing technology, Polyjet is suited for realistic prototypes, and if high accuracy, smooth surface finish are important requisites. Polyjet can print in multiple materials and colors. Polyjet is mostly used for concept prototypes, not suitable for engineering applications or functional parts.
MJF

Multi Jet Fusion (MJF) is one of the fastest processes producing quality plastic parts with detailed features. The parts printed in MJF exhibit consistent mechanical properties, low porosity and are usually light grey in color. It's suitable for small batch production as an alternative to injection molding.