Table 3.
Range and variance analysis (ANOVA) for bending strength
| Type of data processing | HA content A (%) | Layer thickness B (mm) | Printing speed C (mm/s) | Filament feeding speed D (mm/s) |
|---|---|---|---|---|
| Range analysis | ||||
| T1 | 63.7 | 85.6 | 83.1 | 46.4 |
| T2 | 69.2 | 61.6 | 63.1 | 75.3 |
| T3 | 48.7 | 34.4 | 35.4 | 59.9 |
| R | 20.45 | 51.25 | 47.75 | 28.95 |
| Sequence | B>C > D>A | |||
| Optimal levels | A2 | B1 | C1 | D2 |
| Optimal combination | A2B1C1D2 | |||
| Variance analysis | ||||
| SS | 2687.82 | 15779.22 | 13797.42 | 5036.22 |
| DF | 2 | |||
| MS | 1343.91 | 7889.61 | 6898.71 | 2518.11 |
| F | 22.309 | 130.97 | 114.52 | 41.801 |
| P | 0.000002 | 1.2663 × 10 − 14 | 6.4749 × 10 − 14 | 5.4023 × 10 − 9 |