3D Print DESIGN Considerations

When creating a model for 3D printing, there are several things you must keep in mind in order to be able to print successfully, especially when using Multi Jet Fusion. This page gives a clear understanding of different aspects of the design to consider when seeking the perfect part.

As in any type of manufacturing, there are certain limitations to the materials and manufacturing processes that dictate how you must design a product. 3D printing is no different. Characteristics of hardware, software, temperature, materials  and many other factors play into how your digital model translates into a printed object.

The following considerations are for Multi Jet Fusion process, also known as MJF and are contained in the handbook below to the right. Roll over with your pointer and click to open into PDF.

HP Multi Jet Fusion Handbook Contents:

1. Design for HP MJF, Best Practices – Wall thicknesses, cantilevers, connecting and moving parts and thin and long parts 

2. Design for accuracy – Features and tolerances

3. Design for aesthetics – Specifications to consider when trying to achieve  optimal appearance

4. Design for Sound – Acoustic interactivity

5. Design for Interlocking Parts – Chains and links 

6. Types of fits – Clearance and interference fits, accurate holes and bearing housings

7. Inserts – Heat Staking and ultrasonic vibrations inserts, Press inserts and self threading inserts

8. Snap Fits – Cantilever snap-fit, L shaped snap fit, U shaped snap fit, Annular snap fit and torsional snap fits 

9. Threaded Unions – Internal, external and customized threads

10. Hinge design – Designing hinges to avoid fusing when printing 

11. Adhesive bondings – Splitting parts and joint design


When planning and designing for high quality and accurate 3D printed details that give minimal problematic issues when manufacturing or operating in the field, it is good to follow the tried and tested guidelines in the handbook. 

Please contact ADDform if there are any questions or queries regarding design features or aspects of the 3D model you would like have support on to ensure best practice 3D printing.