How to Design for Accuracy with HP Multi Jet Fusion

With every 3D printing technology there are strategies to get the best result with your print. When designing parts for HP Multi Jet Fusion, it is possible to achieve very fine dimensional accuracy, with Cpk values comparable to injection molding. HP has provided a set of guidelines to help maximize the accuracy of your design.

Minimum Specifications

The recommended minimum dimensions for printed features are between 0.1 mm and 0.5 mm

• Minimum hole diameter 0.5 mm

• Minimum shaft diameter 0.5 mm

• Minimum printable font size 6 pt

• Minimum printable features or details (width) 0.1 mm

• Minimum clearance 0.5 mm

• Minimum slit between walls/embossed details 0.5 mm

Embossed and Engraved Details

Text, numbers or drawings should be at least 1 mm deep.

Additional Considerations

When designing for detail, there are several other considerations to keep in mind.

• When possible, place small features with critical dimensions—such as pins, holes, and raised texts—in the same plane.

• Design parts with a smooth cross-section transition.

• When possible, lighten parts and minimize the chance of warpage by hollowing them or adding internal lattices.

• Avoid long, thin, flat parts with a ratio of length to width greater than 10:1.

• Avoid predominantly long and thin curved segments in your part design.

• Avoid ridges and ribs on large, flat areas.

Learn more about Designing for Additive Manufacturing

To learn more about how to design for additive manufacturing, visit Tempus 3D's design guide where you can find more best practices tips plus how to design for aesthetics, interlocking parts, and hinge design.

Additive Manufacturing with Tempus 3D

Tempus3D is an HP certified 3D printing service bureau based in British Columbia, Canada, offering advanced additive manufacturing solutions tailored to your production needs. We specialize in

HP MJF, Sinterit SLS, and Formlabs SLA technologies.

Have a project in mind? Contact us at info@tempus3d.com to learn how we can support your next build.

Let’s make it possible!