Resin vs FDM 3D Printing: Which to Pick
Quick comparison
| Property | FDM | Resin |
|---|---|---|
| Resolution | 0.1 to 0.4 mm layers | 0.025 to 0.1 mm layers |
| Detail | Visible layer lines | Smooth surface, microscopic features |
| Build volume | Up to 300+ mm cube | Usually 200 mm or less |
| Cost per print | Low ($1 to $5 typical) | Higher ($5 to $20 typical) |
| Print speed | Hours | Hours (similar) |
| Materials | Dozens of types | Limited to UV-curable resin |
| Post-processing | Minimal | Wash + UV cure required |
| Safety | Generally safe | Resin is toxic uncured, requires PPE |
| Smell | Minimal (PLA), some (ABS) | Strong, requires ventilation |
| Beginner-friendly | Yes | Higher learning curve |
FDM strengths
- Cheap to run and forgiving of mistakes
- Large build volume options
- Many material types (PLA, PETG, ABS, ASA, TPU, nylon, composites)
- Functional engineering parts
- Outdoor and weather-resistant prints
- Multi-material and multi-colour with the right hardware
Resin strengths
- Miniature-grade detail (D&D figures, jewellery prototypes)
- Smooth surface finish
- Translucent and colour-shifted materials
- Dental and jewellery production
Which to start with
FDM is the broader skillset. PLA, PETG, basic prototyping, functional parts, FDM covers all of it. Resin is a specialist tool: get one when you need miniature-grade detail and you have time to learn safe handling and post-processing.