SLS	Selective Laser Sintering
FDM	Fused Deposition Modeling
FFF	Fused Filament Fabrication
LOM	Laminated Object Manufacturing
3DP	3D printing
DMLS	Direct Metal Laser Sintering
SLM	Selective Laser Melting
FEF	Freeze-Form Extrusion Fabrication
Rp0,21	Yield strength
Rm	Tensile strength
A	Elongation, %
Λ	Thermal conductivity
Wa	the arithmetic mean of the waviness profile deviations, µm
Wt	total height of the waviness profile, µm
Wsk	the slope of the waviness profile
Wq	the square mean of the waviness deviations, µm
Wku	a kurtosis of the waviness profile
$\overline{x}$	mean value
s	square mean errors
r	range
SDc	standard deviation
n	sample size
$\overline{x_c}$	arithmetic mean of all the measured values in the sample
$\overline{W}$	mean value of the waviness parameter for all orientation of printing (thirty samples)
$\Delta {\overline{W}}_0$	mean value of measured waviness parameters for the print orientation 0°
$\Delta {\overline{W}}_{45}$	mean value of measured waviness parameters for the 45° print orientation
$\Delta {\overline{W}}_{90}$	mean value of measured waviness parameters for the 90° print orientation