Design Guidelines: Multi Jet Fusion

Our basic guidelines for Multi Jet Fusion include important design considerations to help improve part manufacturability, enhance cosmetic appearance, and reduce overall production time.

Size

Maximum Dimensions

Normal Resolution 284mm x 380mm x 380mm*
*Suggested maximum dimensions: 200mm x 200mm x 200mm (higher dimensions may increase warping and dimensional inaccuracy risk)
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Accuracy

Layer Thickness 80 microns
Minimum Feature Size 0.5mm

For well-designed parts, tolerances of ±0.25mm plus ±0.002mm/mm can typically be achieved. Note that tolerances may change depending on part geometry.

Materials

  • PA 12 Nylon Black
  • Ultrasint™  TPU-01

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3D printing Multi Jet Fusion machine
3D printed multi jet fusion part hinges

Surface Finishes

STANDARD A bead blast removes all powder and leaves a consistent overall texture. Parts are then dyed a standard black colour.
CUSTOM

Available Secondary options:

  • Natural surface (grayish, not dyed black)
    Untreated material is certified according to following standards: UL 94 (Standard for Safety of Flammability of Plastic Materials for Parts Devices and Appliances testing) and UL 746A (Standard for Polymeric Materials to measure Short Term Property Evaluations) (inkl. link to HP pdf)
  • Taps and Inserts
  • Assembly (bonding, screwing etc.)

Equipment

We use HP Jet Fusion 3D 4200 machines that are capable of accelerated build speeds when compared to other powder-based additive manufacturing technology. The HP 3D printers produce commercial-grade parts with enhanced surface finishes and improved mechanical properties compared to other 3D printing technology.

3D printing technician operating Multi Jet Fusion machine
Applications engineers discuss 3D printing CAD model

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Thanks for your interest in Protolabs. Please let us know how we can provide more information on our services. Once we receive your comments, an applications engineer from our team will follow-up as soon as possible.

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