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HP Multi Jet Fusion is a powerful 3D printing technology that produces highly accurate and durable parts at fast speeds, especially compared to other powder bed fusion technologies. Multi Jet Fusion parts are used for end-use, low-volume production, for rapid prototyping, or as a bridge process to injection molding. Get a feel for how your parts will perform with minimal upfront costs.
Xometry's HP Multi Jet Fusion 3D Printing service has a recommended build envelope of 15” x 11” x 15”.
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| Material Name | Description | Shore Hardness | Elongation at Break (XY, ZX %) | Impact Strength (XY, ZX kJ/m²) |
|---|---|---|---|---|
| Nylon 11 | HP 3D High Reusability PA 11 | 80D | 55%, 40% | 6 kJ/m², 5 kJ/m² |
| Nylon 12 | HP 3D High Reusability PA 12 | 80D | 20%, 15% | 3.6 kJ/m², 3.5 kJ/m² |
| Nylon 12, Glass-Filled | HP 3D High Reusability PA 12 Glass Beads (40% GB) | 82D | 10% | 3 kJ/m² |
| Polypropylene (PP) | HP 3D High Reusability PP | ~70D | 10% | 3.5 kJ/m², 3.0 kJ/m² |
| TPU 88A | BASF Ultrasint™ TPU01 | 88A | 220%, 120% | Partial break, No break |
More MJF materials are available upon request! Review more information about our materials here.
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The speed and versatility of MJF let product developers create tough and detailed physical snapshots of their designs.
MJF can be used to create fully-functional prototypes, complete with moving parts, as well as all-in-one assemblies.
The low price and speed of Multi Jet Fusion make it an ideal way to build large quantities of discrete or customized parts.
While there are many benefits to HP Multi Jet Fusion, a few truly stand out. For starters, the standard build parameters are optimized for the best density. The result is that Multi Jet Fusion parts are watertight.
If you like SLS but want to produce higher quantities for small-batch production runs, Multi Jet Fusion is the way to go. The ability to print multiple parts simultaneously across the entire build volume means you can print parts at rates up to 10X faster than SLS or other 3D printing processes. Also, Multi Jet Fusion delivers more balanced mechanical properties across the X, Y, and Z axes compared to SLS.
If you’re interested in injection molding for your project, it’s always a good idea to get a 3D printed “test” part before making the investment in metal molds. While SLA is a great 3D printing process for extremely detailed and high-resolution prints, the UV cured resins are not as tough as traditional thermoplastics. Prints begin to degrade when exposed to UV light and moisture. Multi Jet Fusion, on the other hand, can produce extremely accurate prints while also maintaining the structural durability of traditional thermoplastics, especially when using glass-filled nylon. This makes it a great process for testing fit and functionality before taking your project to injection molding.
| Description | Tolerance Notes |
|---|---|
| General Tolerances | +/- 0.012" or +/0.003" per inch, whichever is greater, is typical. |
| Build Area | Build area up to 15 x 11 x 15" (14 x 11 x 13" is the recommended usable area). |
| Minimum Feature Size | 0.020" or greater. |
This table depicts the general tolerances for Multi Jet Fusion. Stresses during the builda nd other geometry considerations may cause deviation in tolerances and flatness. Part designs with thicker geometries, flat or broad parts, and parts with uneven wall thicknesses may be prone to significant deviations or warp. Improved tolerances may be possible with a manual quote review, after successful completion of a prototype build, and must be approved on a case-by-case basis. Please check out Xometry's Manufacturing Standards for more information on tolerances per process.
The Basics of HP Multi Jet Fusion 3D Printing
HP Multi Jet Fusion is a powerful 3D printing technology that produces highly accurate and durable parts that are capable of being used directly in end-use, low-volume production, or for rapid prototyping. Since the process uses well-established 2D printing ink-jetting, it has remarkably fast layer times compared to other powder bed fusion technologies.
How HP Multi Jet Fusion Works
Like all powder-based 3D printing processes, HP Multi Jet Fusion builds parts layer by layer, using a fusing agent and heat to set each layer before moving onto the next. In the more traditional 3D printing processes — such as Selective Laser Sintering (SLS), Stereolithography(SLA), or Direct Metal Laser Sintering (DMLS)— each part is imaged, layer by layer, with a single laser beam. HP’s Multi Jet Fusion works a bit more like a traditional ink-jet printer with a printhead that deposits the material, and then a fusing agent, across the entire build plate in one pass, allowing for the printing of multiple parts simultaneously.
The Benefits of HP’s Multi Jet Fusion 3D Printing Process
While there are many benefits to HP Multi Jet Fusion, a few truly stand out. For starters, the standard build parameters are optimized for best density. The result is that Multi Jet Fusion parts are watertight.
If you like SLS but want to produce higher quantities for small-batch production runs, Multi Jet Fusion is the way to go. The ability to print multiple parts simultaneously across the entire build volume means you can print parts at rates up to 10X faster than SLS or other 3D printing processes. Also, Multi Jet Fusion delivers more balanced mechanical properties across the X, Y, and Z axes compared to SLS.
If you’re interested in injection molding for your project, it’s always a good idea to get a 3D printed “test” part before making the investment in metal molds. While SLA is a great 3D printing process for extremely detailed and high-resolution prints, the UV cured resins are not as tough as traditional thermoplastics. Prints begin to degrade when exposed to UV light and moisture.
On the other hand, Multi Jet Fusion can produce extremely accurate prints while also maintaining the structural durability of traditional thermoplastics, especially when using glass-filled nylon. This makes it a great process for testing fit and functionality before taking your project to injection molding.
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