Design Tips
Updated: Oct 2
Five Principles for Better 3D Printed Parts
Design for the Job
Start by defining what the component actually needs to do.
Consider whether it is structural or cosmetic, where it will be used, how it will be mounted and what forces or temperatures it may experience. These requirements should guide the design from the beginning.
Think About How Parts Fit Together
Clearance is important whenever a printed component needs to slide into, clip onto or fit around another object.
Designing two mating surfaces at exactly the same nominal size can create problems once they are manufactured. Appropriate tolerances should be incorporated and verified with a prototype where fit is critical.
Avoid Unnecessary Complexity
3D printing makes complex geometry possible, but complexity should have a purpose.
Simpler geometry can often be stronger, easier to manufacture and easier to modify. Good design is not about adding as many features as possible; it is about solving the problem efficiently.
Use Curves and Transitions Carefully
Sharp changes in geometry can create weak points and may also affect appearance.
Smooth transitions, appropriate radii and considered wall thicknesses can improve both the strength and finish of a component. This is particularly useful around mounting points and areas that experience repeated loads.
Prototype Critical Features
When fit or function matters, testing is valuable.
Instead of committing immediately to a finished component, a prototype can verify the important dimensions and interfaces. This allows problems to be corrected digitally before the final version is produced.
Turn the Design Into a Solution
The best 3D printed parts combine good modelling, appropriate material selection and an understanding of how the component will actually be used.
Greenstone helps take projects through this process, from scanning or initial design to prototyping and finished plastic components.
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