Durable, functional parts built layer by layer in engineering thermoplastic.
Fused Deposition Modeling (FDM) is an additive manufacturing process that builds parts by extruding a thermoplastic filament through a heated nozzle, depositing material one layer at a time until the part is complete. It's one of the most widely used 3D printing processes for engineering work, valued for producing parts that are mechanically robust and dimensionally consistent enough to function, not just to look right.
Because the process works directly from a 3D CAD file, it's well suited to both one-off parts and short runs, and it scales naturally through an iterative design process — a part can be reprinted with a design change in a fraction of the time a traditional manufacturing method would take.
We use FDM most often for functional prototypes that need to be handled, assembled or tested under real conditions rather than just viewed. It's a strong fit for jigs and fixtures used on the shop floor, enclosures and housings for electronics or mechanical assemblies, and general engineering parts that support ongoing product development work. It's also a practical choice when a design is still evolving and needs to be validated cheaply before committing to production tooling.
Because parts can be reprinted quickly with design changes applied, FDM also suits low-volume production of custom components — brackets, mounts, tooling aids and one-off replacement parts that would be difficult to justify through conventional manufacturing routes for a single unit or a small batch. For product-development teams, this makes it a practical way to keep testing real, physical parts throughout a design cycle rather than relying solely on digital models.
FDM parts are built from engineering thermoplastics, a material family that offers a useful balance of strength, durability and cost-effectiveness across a range of applications. Different thermoplastics within this family behave differently — some prioritise toughness and impact resistance, others prioritise stiffness or dimensional stability — so material selection depends on how the part will actually be used. We help you choose a suitable material as part of the quoting process, based on your part's function rather than a generic default.
A few geometric factors influence how well a part suits FDM. Wall thickness matters: walls that are too thin can affect strength and print reliability, while very thick sections add unnecessary print time and material. Overhangs and unsupported geometry may need supporting structures or a reoriented build, which can affect surface finish on certain faces. Layer orientation also has a real effect on mechanical performance, since FDM parts are generally stronger along the layer plane than across it — so the way a part is oriented on the build platform should reflect how it will be loaded in use. Our team reviews these factors during design-for-manufacturability checks before a part goes to print, and where a design would benefit from a small change — a fillet in place of a sharp internal corner, or a reoriented feature — we'll flag it before production rather than after.
If you have a part that needs to be functional, durable and ready quickly for testing or use, share your CAD file with our team and request a quote — we'll advise on material and orientation as part of the process.
Share your CAD file with our engineering team and request a project-specific quote.