From: Optimization of process parameters of 3D printed thermoplastic elastomeric materials using statistical modeling with particular reference to mechanical properties and print quality
Factors representation
Factors (unit)
Levels
−2
−1
0
1
2
X1
Layer height (mm)
0.20
0.25
0.30
0.35
0.40
X2
Print Speed (mm/s)
6.00
9.00
12.00
15.00
18.00
X3
Ink Concentration (wt%)
10.00
20.00
25.00
30.00