Why Supports Matter in Resin Printing
Resin supports must counteract peeling forces during each layer's separation from the FEP film. Poor supports cause failures, not just rough surfaces. This guide covers orientation, density, and removal.
Orientation Is Everything
- Angle 20-45 degrees from build plate to reduce layer area
- Avoid large flat surfaces parallel to plate
- Orient details upward for best surface finish
| Orientation | Suction Force | Best For |
|---|---|---|
| 0 degrees (flat) | Very High | Solid bases |
| 45 degree tilt | Low | Miniatures |
| 30 degree tilt | Low-Medium | Mechanical parts |
Support Types
- Light (0.3-0.4mm): Detailed areas, clean removal
- Medium (0.5-0.7mm): General overhangs, workhorse
- Heavy (0.8-1.2mm): Large areas, first layers
Density by Resin Type
| Resin | Light Density | Medium Density |
|---|---|---|
| Standard | 60-70% | 30-40% |
| ABS-Like | 70-80% | 35-45% |
| Standard Lite | 50-60% | 25-35% |
| Elastic | 80-90% | 50-60% |
Clean Removal Techniques
- Wash before removing supports
- Use flush cutters at contact points
- Sand with 600-1200 grit paper
- Post-cure after removal
- Hot water dip (60C, 30s) for easier removal
Conclusion
With proper support strategy and quality materials from InnoStation 3D, you will achieve clean results every time.