3D printing comes with a lot of design freedom. You can add angles and curves without making the production process more costly or complex. We encourage you to add as many fillets as possible.
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Adding generous fillets to connections is crucial to increase structural support. It is important to make fillets as large as possible to increase the amount of surface area involved in a connection. Another way to achieve this is drafting extrusions outwards.
Sharp corners and edges often get softened during post-processing, so adding fillets can also make your parts more predictable and accurate.
Complexity is free, that includes organic shapes and curved surfaces. However, there are a few considerations when creating these shapes.
The print direction is critical to the quality of your parts curves. Curves in the XY-plane will be the most accurate. In the Z-direction, the accuracy is linked to the layer height of the build. SLS printing is a very precise method of 3D printing. However, on parts that have an angled or curved surface in the Z planes, you will still be able to see some layering. Shot peening will get you a smooth finish on these surfaces.
Our guidelines are filled to the brim with useful information on how to design your models, the newest technologies and specifications for your parts!