Table 3.

ANOVAs on the raw data [42]. Analysis 1: ANOVA of the influence of the arrangements of the replicas on the build plate. Analysis 2: ANOVA of the effect of the sloping angle on the surface roughness. Analysis 3: ANOVA of the influence of the direction (upward and downward) of the surface on the roughness.

Analysis	Null Hypothesis: The position of the replica on the build plate affects the roughness	Degrees of Freedom	Variance	F-ratio	Fmax
1	Examined factor	8	6.89 × 10−3	0.22	1.96
	Casual errors	369	3.14 × 10−2
	Total	377
2	Examined factor	13	6.64 × 10−1	79.96	1.75
	Casual errors	364	8.31 × 10−1
	Total	377
3	Examined factor	1	2.08 × 10−1	9.98	3.93
	Casual errors	106	2.08 × 10−2
	Total	107