Table 1.

Process parameters used for PCL scaffold printing.

	Parameters	Tested Values	Measurable Variable
Fabrication parameters	Extruder temperature	65, 70, 75, 80, 85, and 90 °C	Printed filament diameter
	Bed temperature	25, 30, 33, 35, and 37 °C	1-Material adhesion (Y/N) 2-First layer height
	Deposition velocity	10, 20, and 30 mm/s	Printed filament diameter
	Layer height	0.28 and 0.3 mm	Printing quality (absence of blobs)
Design parameters	Filament diameter	0.175, 0.3, and 0.5 mm	1-Adhesion of contiguous filaments (Y/N) 2-Printed filament diameter
	Distance between filaments	0.5, 0.7, and 1 mm	1-Real distance between filaments 2-Smallest pore option
	Deposition angle	90°, 45°, and 60°	Pore angles