3D Printing Service:
Multi-Jet Fusion
Our HP Multi-Jet Fusion (MJF) services offer:
- Speed
- Watertight Applications
- Isotropic Mechanical Properties
- Instant and Engineer-Assisted Quotes
- Certifications: ISO 9001:2015, AS9100D, and ITAR
- Instant and Engineer-Assisted Quotes
- Certifications: ISO 9001:2015, AS9100D, and ITAR
-
Instant and
Engineer-Assisted
Quotes - 100+ Materials
-
40+ Surface
Finishes -
Certifications:
ISO 9001:2015,
AS9100D, and ITAR -
In-House Services: 3D Printing,
CNC Machining, Urethane Casting,
and Sheet Metal Fabrication
Our Process is Simple.
Upload a CAD file and request a quote.
Our team will start production.
Once complete, it passes through quality control.
Lastly, our team ships the part(s) to you.
What is Multi-Jet Fusion?
The HP Multi Jet Fusion 3D printer uses an advanced additive manufacturing process. It incorporates powdered thermoplastic material, liquid agent, and infrared energy to fuse components seamlessly with remarkable accuracy. Our AM Technicians expertly remove any excess powder from the pieces, preparing the parts for use or further refinement. This technology is excellent at creating functional nylon prototypes and end-use parts. Its real strength lies in producing brackets, connectors, hinges, housings, and thin-wall ductwork with utmost precision. Multi Jet Fusion is also ideal for crafting intricate details in large quantities.
How does Multi-Jet Fusion work?
The AM technician begins by uploading your CAD file into the machine. Subsequently, the software breaks it down layer by layer. The printer uses an inkjet array to apply a fusing and detailing agent across a nylon powder bed fused by heating elements. Once the laser finishes, a roller applies a new layer of powder onto the powder bed, and the process repeats until the parts are complete.
Upon completion of the build, the entire powder bed is removed and taken to a breakout station where AM technicians remove the parts from the powder and brush off the excess powder. Subsequently, the components are placed into a container and blasted with a blasting medium to remove the remaining powder. After this step is complete, the parts go to the finishing department.
Also, it’s worth noting that the HP multi-jet fusion printer does not need support structures because the powder bed suspends the part.
Advantages to Multi-Jet Fusion
Multi-jet fusion technology has revolutionized the way products are designed and manufactured. The following are a few of the advantages of multi-jet fusion:
- No support structures needed.
- Creates high-density components.
- Automated vapor smoothing available.
- Fine feature resolution.
Disadvantages to Multi-Jet Fusion
While there are a lot of advantages to multi-jet fusion, there are also some disadvantages to consider:
- Finishing and post-processing necessary to smooth surfaces.
- Parts may be brittle.
- Components are not UV-resistant and can discolor.
HP Multi-Jet Fusion at Prototek
Multi-Jet Fusion Machine Companies:
HP
Multi-Jet Fusion File Types:
Preferred Files: Solid, STEP, and DFX
Max Build Chamber Size:
14.96 x 11.18 x 14.96 in
Lead Time:
2 – 4 Days
Material:
HP Nylon 12, HP Nylon 12 GB
Tolerances:
± 0.010 in for the first inch and ± 0.003 in/in for each additional inch
Prototek's MJF Materials
HP Nylon 12
The HP Nylon 12 is a high-performance multi-jet fusion material known for its exceptional strength, versatility, and durability. This nylon powder also offers excellent long-term stability and high chemical resistance, making it ideal for various industrial and commercial applications.
Tensile Strength
6,960 psi
Tensile Modulus
247 ksi
Elongation @ Break
20%
Flexural Strength
9,425 psi
Flexural Modulus
251 ksi
Heat Deflection @ 264 psi
203° F
HP Nylon 12 GB
HP Nylon 12 GB is a highly durable thermoplastic with exceptional mechanical properties. It is a blend of nylon and glass beads, with the glass beads comprising 40% of the material. Additionally, the addition of glass beads makes the material stronger, enhancing its dimensional stability. As a result, this makes it less likely to warp or deform under high temperatures or mechanical stress.
Tensile Strength
4,350 psi
Tensile Modulus
406 ksi
Elongation @ Break
6.5%
Flexural Strength
N/A
Flexural Modulus
N/A
Heat Deflection @ 264 psi
250° F
*Special processing may be required. Please notify us of any biocompatibility needs.
Design Recommendations
When designing parts for HP Multi Jet Fusion (MJF), it is crucial to consider several critical factors to ensure the best possible outcome. Firstly, MJF printing is a powder-based manufacturing process, so the design should be optimized for this technique. Moreover, it is essential to consider the effects of thermal expansion, which may cause slight changes in the dimensions of the final product as the powder material heats up during printing. Avoid overly thin wall thickness or delicate structures to prevent distortion and ensure that tolerances are specified correctly. Lastly, designers should use MJF’s 3D printing technology benefits, such as high resolution, fast build speed, and low post-processing requirements. By considering these factors, designers can create functional parts optimized for production and meet the specific needs of their applications.
| Feature | Measurements | |
|---|---|---|
|
|
Connecting & Moving Parts |
Connecting: 0.006 in Moving: 0.012 in |
|
|
Escape Holes |
0.04 in |
|
|
Embossing & Engraving |
Width: 0.04 in Height/Depth: 0.04 in |
|
|
Holes & Openings |
0.03 in |
|
|
Horizontal Spans |
Supports Not Required |
|
|
Minimum Features |
0.03 in |
|
|
Pin Diameter |
0.02 in |
|
|
Supports & Overhangs |
Supports Not Required |
|
|
Walls (Supported) |
0.02 in |
|
|
Walls (Unsupported) |
Supports Not Required |
| Feature | Measurements | |
|---|---|---|
|
|
Connecting & Moving Parts |
Connecting: 0.15 mm Moving: 0.3 mm |
|
|
Escape Holes |
1 mm |
|
|
Embossing & Engraving |
Width: 1 mm Height/Depth: 1 mm |
|
|
Holes & Openings |
0.5 mm |
|
|
Horizontal Spans |
Supports Not Required |
|
|
Minimum Features |
0.7 mm |
|
|
Pin Diameter |
0.5 mm |
|
|
Supports & Overhangs |
Supports Not Required |
|
|
Walls (Supported) |
0.5 mm |
|
|
Walls (Unsupported) |
Supports Not Required |
Multi-Jet Fusion Finishes
Prototek Digital Manufacturing is excited to offer advanced finishing solutions explicitly designed for components using multi-jet fusion technology. Furthermore, our state-of-the-art automated post-processing capabilities ensure consistently high-quality surface finishes for your parts, significantly enhancing their performance and visual appeal. With our finishing solutions, you can expect unparalleled precision and reliability, ensuring that your components meet industry standards.
Multi-Jet Fusion Finishes
| Level | Process |
|---|---|
|
Natural |
Matte, grey finish. |
|
Standard |
Matte finish dyed black. |
|
Tumbled |
The surface is smoothed with a media for an eggshell finish. |
|
Smoothed & Sealed |
Bead-blasted and vapor smoothed for a sealed, satin watertight finish. |
|
Smoothed, Sealed, & Dyed |
Vapor-sealed and dyed (specify color) for a satin, watertight finish. |
|
Primed Exterior |
Exterior (cosmetic) surfaces are smoothed and coated in grey primer. |
|
Painted |
Parts are smoothed, primed, and painted (provide drawing with paint specifications). |
|
Custom |
Custom finish. Let us know if your project requires special finishing. Please fill out our engineer-assisted quote form. |
Learn More About MJF
Through our resources, you can discover the complexities of MJF 3D printing and gain insights into creating top-notch designs specifically tailored for this cutting-edge technology.
Vapor Smoothing: The Secret to Professional-Looking 3D Prints
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Functional Prototyping with NICE Recovery
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AM Powder Bed Technologies
Check out this comparison guide to powder bed additive manufacturing. This process involves advanced selective laser sintering and multi-jet fusion technologies, allowing for the precise...
Prototek's
Other Additive Manufacturing Technologies
Why choose Prototek for your next multi-jet fusion project?
There are several reasons why someone might choose Prototek for multi-jet fusion services. Prototek offers high-quality multi-jet fusion services at competitive prices. Customers can get the needed parts, whether prototyping or low-volume production runs, without compromising quality or budget. Our experienced engineers and technicians can provide expert advice and support throughout the multi-jet fusion process, from design to production. Ensuring customers get the best results from their multi-jet fusion projects. Thirdly, Prototek has state-of-the-art equipment and facilities enable it to produce HP multi-jet fusion parts quickly and efficiently. Customers can get their parts faster, which can be especially important in time-sensitive projects.
