3D printing has revolutionized model making. Whether you create miniatures, architectural models, or functional prototypes, choosing the right printer is crucial. Two of the most common technologies in 3D printing for model making are FDM (Fused Deposition Modeling) and resin printing. Both offer different advantages depending on your requirements.
What is FDM printing?
FDM is the most popular 3D printing technology, especially among beginners and hobbyists. In FDM printing, filament (usually PLA, ABS, or PETG) is melted and applied layer by layer. It is excellent for larger models and more robust applications.
Advantages of FDM printing:
- Cost-effective: FDM printers and filaments are generally cheaper than resin printers.
- Ease of use: FDM printers are often more user-friendly and require less post-processing.
- Versatility: With different filament types (PLA, PETG, TPU), you can print models with varying degrees of hardness and flexibility.
- Large print beds: Many FDM printers offer larger print beds, which is advantageous for larger models or multiple parts at once.
Disadvantages of FDM printing:
- Lower detail accuracy: Compared to resin printers, FDM printers can produce less fine details, which can be problematic for very small miniatures.
- Surface quality: Visible layer heights and line structures can affect surface quality, often requiring additional post-processing.
What is resin printing?
Resin printers (also called SLA or DLP) use light-sensitive resin that is cured layer by layer by a UV laser or projector. This technology is especially suitable for detailed prints and is often used for miniatures and delicate models.
Advantages of resin printing:
- High detail accuracy: Resin printers offer excellent resolution and can reproduce the finest details – ideal for model building that requires precise miniatures.
- Smoother surfaces: Resin prints generally have a much smoother surface, making them especially suitable for smaller models or cosmetic details.
- Faster print times: For smaller models or high detail requirements, resin printers can work faster than FDM printers.
Disadvantages of resin printing:
- Cost: Resin printers and materials are more expensive than FDM models and filaments.
- Post-processing: Resin prints often require more post-processing because the resin must be washed off after printing and then cured.
- Smell and toxicity: Printing with resin can release unpleasant odors and toxic fumes, so a well-ventilated workspace is required.
Conclusion: Which printer is better for model building?
The choice between an FDM and a resin printer largely depends on the model builder's requirements. If you need large models or functional prototypes where durability and versatility are key, an FDM printer is often the better choice. For highly precise miniatures and models with many details, a resin printer is the ideal choice.
For beginners, FDM printers offer a good combination of cost and functionality, while resin printers are essential for more demanding models and finer details.
