Support Material Calculator
Estimate how much support material your 3D print needs.
Calculate extra filament, time, and cost for overhangs and bridges.
Support Material Estimate
Support material is needed for overhangs beyond 45-50 degrees.
When supports are needed:
| Overhang Angle | Support Needed? |
|---|---|
| 0-30° | No |
| 30-45° | Usually no |
| 45-60° | Yes, recommended |
| 60-90° (horizontal) | Yes, required |
Support density guidelines:
- 10-15% — Light support, easy to remove
- 20-30% — Standard, good balance
- 40-50% — Dense, for heavy overhangs
Support material usage estimate:
Support Volume ≈ Overhang Area × Height × Support Density
Extra Filament = Support Volume × Material Density
Time impact: Support structures add 15-40% to print time depending on complexity.
Filament density:
- PLA: 1.24 g/cm³
- ABS: 1.04 g/cm³
- PETG: 1.27 g/cm³