$A_d$	Measured cross-sectional area of the deposited filament (${\mathrm{mm}}^2$)
D	Diameter of the just extruded strand (also diameter of nozzle) (mm)
De	Diameter of the strand if there is no deposition deformation (mm)
$E$	Viscous dissipation
$F_a$	Axial force at the beginning of the suspended extrudate
$F_b$	Axial force at the end of the suspended extrudate
F	Axial force acting over the cross-section of the suspended extrudate
$F_x$	Reaction force applied by the substrate to the extrudate along the x direction
$F_y$	Reaction force applied by the substrate to the extrudate along the y direction
g	Acceleration of gravity (m/$s^2$)
G	Weight of the suspended extrudate
h	Gap between two molding plates (mm)
H	Distance between the nozzle head and the build platform (mm)
K	Shear consistency index (Pa sn)
L	Extensional consistency index (Pa sm)
$l_0$	Distance between A and B
$l_1$	Compressed width of the deposited filament’s bottom surface (mm)
$l_2$	Compressed width of the deposited filament’s top surface (mm)
$l_b$	Bonding width between two stacked filaments (mm)
m	Extensional thinning (or thickening) index
n	Shear thinning (or thickening) index
Q	Amount of material extruded per unit time
s	Arc length (mm)
$t_c$	Characteristic time of forming the compressed portion
$T_r$	Trouton ratio
U	Clamping speed in compression molding ($\mathrm{mm}$/s)
$U_e$	Extrusion speed (mm/s)
$U_s$	Moving speed of the nozzle head (mm/s)
$U\left(s\right)$	Speed of the extrudate (mm/s)
$V$	Characteristic volume of the extrudate’s compressed portion
$V_{\mathrm{comp}}$	Compressed volume of the extrudate (${\mathrm{mm}}^3)$
W	Work done by $F_y$
Greek letters
$\psi \left(x\right)$	Inclination of the centerline to the horizontal surface
$\gamma$	Surface tension (mN m−1)
$\rho$	Mass density (kg m−3)
${\delta }_1$	Compressed depth of the deposited filament’s bottom surface (mm)
${\delta }_2$	Compressed depth of the deposited filament’s top surface (mm)
$ø$	Dissipation function
${\delta }_{01}$	Compressed depth of the extrudate’s bottom during the collision (mm)