FDM vs SLA 3D Printing: Differences and Uses

FDM and SLA are the two most common ways to 3D print plastic parts. They suit different jobs.

Detail and finish

SLA gives finer detail and smoother surfaces. FDM shows visible layer lines, which can be smoothed by finishing.

Strength and materials

FDM offers a wide range of tough materials such as PETG, ABS and flexible TPU. SLA resins are often more brittle, though tougher resins exist.

Size and cost

FDM suits larger parts and costs less for bigger objects. SLA suits small detailed parts.

Choose FDM when

You need a larger, functional or flexible part, or a lower cost.

Choose SLA when

You need fine detail, a smooth surface, or a small master pattern.

Not sure?

Send us the file and tell us what the part is for. We will recommend the right process.

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