MJF 3D Printing Service

3d printing service on demand

Upload your CAD files, Receive your customized custom HP Multi Jet Fusion 3D printing quote. Choose from a variety of process materials to suit your needs.

What is MJF?
HP Multi Jet Fusion [MJF]

Multi Jet Fusion (MJF) begins with a thin layer of powdered material being deposited across the build platform. Droplets of fusing and detailing agents are applied along with thermal energy on top of the powdered material to define the part’s geometry.

HP Multi Jet Fusion [MJF]

Our Services

Upload custom models for functional. high-performing 3D pieces. Take the guesswork out of manufacturing development with 3D printed prototypes for meetings, testings and perfection of final parts.

Ready-to-manufacture 3D prints with one step production from raw material to final part.

Available
Materials for MJF 3D Printing

Material

Polypropylene (PP)

Description

Wide range of automotive, consumer, industrial and medical applications.

Excellent chemical resistance, low moisture absorption and long-term durability

Material

Nylon 12

Description

High strength & durability, good impact resistance, professional finish, thin features & interlocking parts

Material info
About HP 3D Polypropylene (PP) [MJF]

PP is a versatile material ideal for a wide range of automotive, consumer, industrial and medical applications. With its excellent chemical resistance, low moisture absorption and long-term durability, HP High Reusability PP enabled by BASF is ideal for piping, fluid systems and containers.

The versatility of this PP material enables the production of prototypes and final parts offering the same properties as PP for injection moldin

Color & Finishes

Gray Natural Finish
Standard

Technology

Download Datasheet

Material Properties

Tensile Strength X

30 MPa

Tensile Strength Z

30 MPa

Heat Deflection Temp (0.45 MPa)

100 ºC

Tensile Modulus X

1600 MPa

Tensile Modulus Z

1600 MPa

Elongation at Break X

20%

Elongation at Break Z

18%

Walls

Supported Wall Thickness Min
0.4 mm
Unsupported Wall Thickness Min
0.5 mm

A supported wall is connected at least on two sides of the wall, while an unsupported wall is connected only on one side of the wall.

Walls that do not meet the minimum requirements may not survive printing and cleaning processes. Additionally, models may still be rejected based on the wall geometry of the model.

Please consider the size of your model and reinforce the walls or add support structures as needed as minimum guidelines will not always be adequate for large models.

Wires

Supported Wires Min
0.8 mm
Unsupported Wires Min
1.0 mm

A wire is a circular, rectangular or even triangular feature that is thinner in its unconnected directions than its length. A supported wire is connected at least on two sides of the model, while an unsupported wire is connected on one side of the model.

Wires that do not meet the minimum requirements may not survive printing and cleaning processes. Additionally, models may still be rejected based on the wire geometry of the model.

Please consider the size of your model and reinforce the wires or add support structures as needed as minimum guidelines will not always be adequate for large models.

Details

Details Min Embossed
0.3 high x 0.4 wide (mm)
Details Min Engraved
0.2 high x 0.4 wide (mm)

For text, the ratio between width and depth, should be 1:1 and sans-serif fonts are preferred for line weight consistency.

Escape Holes

Single Escape Hole Diameter (Min)
5.0 (mm)
Multiple Escape Hole Diameter (Min)
3.00 (mm)

Escape holes are necessary to empty the support material of a hollow model. Two escape holes at the opposite ends of the model is optimal for the support removal process.

Please consider the size of your model and make the escape holes bigger or add more escape holes as needed as minimum guidelines will not always be adequate for large models.

A single escape hole at the end of a cavity will not allow material in the corners near the escape hole to fully escape. So we recommend multiple escape holes at both ends of the cavity.

Clearance

Min
0.6 (mm)

Clearance is the space between two individual parts in a model.

If the space among the individual parts do not meet the minimum clearance, then parts can fuse together or can be difficult to clean.

This is important for movable pieces like hinges, gears, etc.

Sprues

2.0 (mm)

Sprues are wires that keep two or more parts together. Parts should be connected with a minimum of two sprues each. Please consider the size of your sprues and increase them as needed as minimum guidelines will not always be adequate for large models.

If the sprues are within the guidelines and are broken, but there is no damage to your model, we will still ship them as is.

Interlocking & Enclosed Parts

Interlocking
Yes
Enclosed
Yes

Parts in File

Max
Up to 50

Design Guidelines

Bounding Box
Bounding Box Max
380x284x380 (mm)
Bounding Box Min
7x7x2 (mm)

The bounding box is a 3D imaginary outline of a box that encloses the smallest area occupied by your model.

Your model must be within the minimum and maximum bounding box sizes. If the size of the model is close to the maximum bounding box, then the printing orientation will be restricted.

Accuracy

Accuracy +/-0.25 mm + 0.1%

For example: a product with dimensions of 50x50x100 mm can be 0.15 mm + 0.0015*100 mm = 0.3 mm bigger or smaller in any direction.

Get Your Printed Parts
Into Production Runs Today

Parts in as Fast from 8 business days

Get Instant Quote

Material info
About Nylon 12 [MJF]

Multi Jet Fusion (MJF) Plastic PA12 is HP’s nylon plastic with excellent mechanical properties and a slightly grainy finish. In black, it is also available in a smooth and slightly glossy finish. MJF Plastic PA12 is an ideal choice for a wide range of applications from industrial parts to durable end-use goods.

Its strength, durability and stiffness make it great for functional parts, such RC car parts and mounts. It is also popular for home decor, eyewear and games. MJF Plastic PA12 is printed using HP’s Multi Jet Fusion technology and supports very complex geometries and thin features.

Color & Finishes

Gray
Black
As-printed
Dyed

Technology

Download Datasheet

Material Properties

Tensile modulus (ASTM D638)

1800 MPa (XY)
1800 MPa (Z)

Tensile strength (ASTM D638)

48 MPa

Elongation at break (ASTM D638)

20 % (XY)
15 % (Z)

Flexural modulus (23°C)(ASTM D790)

1730 MPa

Walls

Supported Wall Thickness Min
0.4 mm (Natural) 1.5 mm (Smooth)
Unsupported Wall Thickness Min
0.5 mm (Natural) 1.5 mm (Smooth)

A supported wall is connected at least on two sides of the wall, while an unsupported wall is connected only on one side of the wall.

Walls that do not meet the minimum requirements may not survive printing and cleaning processes. Additionally, models may still be rejected based on the wall geometry of the model.

Please consider the size of your model and reinforce the walls or add support structures as needed as minimum guidelines will not always be adequate for large models.

Wires

Supported Wires Min
0.8 mm (Natural) 1.5 mm (Smooth)
Unsupported Wires Min
0.9 mm (Natural) 1.5 mm (Smooth)

A wire is a circular, rectangular or even triangular feature that is thinner in its unconnected directions than its length. A supported wire is connected at least on two sides of the model, while an unsupported wire is connected on one side of the model.

Wires that do not meet the minimum requirements may not survive printing and cleaning processes. Additionally, models may still be rejected based on the wire geometry of the model.

Please consider the size of your model and reinforce the wires or add support structures as needed as minimum guidelines will not always be adequate for large models.

Details

Details Min Embossed
0.2 mm high & wide (Natural) 0.3 mm high & 0.5 mm wide (Smooth) (0.4 mm high & wide for readable text, logos, and icons)
Details Min Engraved
0.2 mm deep & wide (Natural) 0.3 mm deep & 0.4 mm wide (Smooth) (0.4 mm high & wide for readable text, logos, and icons)

For text, the ratio between width and depth, should be 1:1 and sans-serif fonts are preferred for line weight consistency.

Escape Holes

Single Escape Hole Diameter (Min)
4.0 mm (Natural) 10 mm (Smooth)
Multiple Escape Hole Diameter (Min)
2.0 mm (Natural) 8.0 mm (Smooth)

Escape holes are necessary to empty the support material of a hollow model. Two escape holes at the opposite ends of the model is optimal for the support removal process.

Please consider the size of your model and make the escape holes bigger or add more escape holes as needed as minimum guidelines will not always be adequate for large models.

A single escape hole at the end of a cavity will not allow material in the corners near the escape hole to fully escape. So we recommend multiple escape holes at both ends of the cavity.

Clearance

Min
0.6 mm (Natural) 5.0 mm (Smooth)

Clearance is the space between two individual parts in a model.

If the space among the individual parts do not meet the minimum clearance, then parts can fuse together or can be difficult to clean.

This is important for movable pieces like hinges, gears, etc.

Sprues

2 mm thick, attached in at least 2 places per part

Sprues are wires that keep two or more parts together. Parts should be connected with a minimum of two sprues each. Please consider the size of your sprues and increase them as needed as minimum guidelines will not always be adequate for large models.

If the sprues are within the guidelines and are broken, but there is no damage to your model, we will still ship them as is.

Interlocking & Enclosed Parts

Interlocking
Yes
Enclosed
Yes

Parts in File

Max
Up to 250 (Natural) Up to 10 (Smooth)

Design Guidelines

Bounding Box
Bounding Box Max
380 x 284 x 284 mm (Gray Natural and Black Smooth)
Bounding Box Min
4 x 4 x 1 mm or X + Y + Z > 9 mm (Gray and Black Natural)

The bounding box is a 3D imaginary outline of a box that encloses the smallest area occupied by your model.

Your model must be within the minimum and maximum bounding box sizes. If the size of the model is close to the maximum bounding box, then the printing orientation will be restricted.

Accuracy

Accuracy  Natural: ± 0.2 mm ± 0.5% of the length Smooth: ± 0.4% (with a lower limit of ±0.2 mm)

For example: a product with dimensions of 50 x 50 x 100 mm can be 0.2 mm + 0.005*100 mm = 0.7 mm bigger or smaller in any direction.

Get Your Printed Parts
Into Production Runs Today

Parts in as Fast from 8 business days

Get Instant Quote