FDM (Fused Deposition Modeling) 3D printing is a popular additive manufacturing technique that extrudes material through a heated nozzle to build objects layer by layer. This method involves melting a thermoplastic filament and depositing it in thin layers to create the desired shape, enabling precise and cost-effective production of complex geometries and functional prototypes.
In FDM 3D printing, the process starts with a digital model created with CAD software. The model is then sliced into thin horizontal layers by slicing software, which directs the printer throughout the build process. As each layer is added, it fuses with the previous one, gradually forming the complete object. This technology is widely used for its affordability, ease of use, and ability to produce durable and detailed parts.
FDM 3D printing constructs objects by layering thermoplastic filaments. The process begins with a 3D model, which is sliced into thin layers using specialized software. The printer heats the filament and extrudes it through a nozzle onto the print bed, following the path defined by the sliced model. Each layer cools and bonds to the previous one, gradually forming the object. This layer-by-layer approach continues until the entire 3D structure is complete. The process is precise, allowing for the creation of complex shapes and detailed parts.
FDM can produce parts relatively quickly, with the ability to print complete objects in a matter of hours. This speed is advantageous for rapid prototyping and iterative design processes.
FDM can produce relatively large parts or multiple parts in one run, which is helpful for prototype and small-batch production.
Parts often require little finishing. With basic trimming and sanding, they can be put to use quickly.
Supports ABS, PLA, PETG, nylon, and more, including fiber-filled materials—allowing different mechanical properties for specific applications.
Lower machine and filament cost than many other 3D printing processes—great for small businesses and hobbyists.
Additive manufacturing builds layer by layer and uses only what’s needed, producing far less waste than subtractive methods.
| Dimensional Accuracy | ± 0.5% of the part dimension |
|---|---|
| XY Plane Tolerance | ± 0.127 mm to ± 0.508 mm |
| Z Plane Tolerance | ± 0.254 mm to ± 0.762 mm |
| Minimum Feature Size | 1.0 mm or larger |
| Hole Diameter Tolerance | Diameter should be greater than 1.0 mm |
| Gap Width Tolerance | Minimum gap width of 5.0 mm |
| Fillet Radius | Minimum radius of 1.5 mm |
| Grinding | Smooth the surface with various grinding tools |
|---|---|
| Chemical Polishing | Acetone polishing and PLA polishing |
| Dyeing | Color with acrylic paint |
| Heat Treatment | Such as annealing, can improve strength, etc. |
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