Table 2
Box–Behnken method based experimental design with measured response.
| Box–Behnken design matrix for 3 level and 3 parameters | ||||
|---|---|---|---|---|
| Run | Level 1 | Level 2 | Level 3 | Response 1 |
| A: Nozzle diameter | B: Extrusion pressure | C: Printing speed | Electrical conductivity | |
| mm | MPa | mm/s | S/m | |
| 1 | 0.6 | 0.2 | 7 | 711 |
| 2 | 0.6 | 0.15 | 10 | 707 |
| 3 | 0.8 | 0.15 | 7 | 736 |
| 4 | 0.8 | 0.15 | 7 | 735 |
| 5 | 1 | 0.2 | 7 | 688 |
| 6 | 0.8 | 0.2 | 10 | 724 |
| 7 | 0.8 | 0.2 | 4 | 737 |
| 8 | 0.6 | 0.1 | 7 | 717 |
| 9 | 1 | 0.15 | 10 | 684 |
| 10 | 0.8 | 0.15 | 7 | 734 |
| 11 | 0.8 | 0.1 | 4 | 759 |
| 12 | 0.6 | 0.15 | 4 | 723 |
| 13 | 1 | 0.1 | 7 | 705 |
| 14 | 1 | 0.15 | 4 | 712 |
| 15 | 0.8 | 0.1 | 10 | 728 |
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