Optimization of 3D Printing Process Parameters of Polylactic Acid Filament Based on the Mechanical Test

Table 1

Printing parameters of specimens.

Parameters/specimens	Specimen I	Specimen II	Specimen III	Specimen IV	Specimen V
Extruder temperature	200°C	210°C	215°C	217°C	219°C
Bed temperature	50°C	0°C	0°C	0°C	0°C
Layer height	0.18 mm	0.12 mm	0.20 mm	0.20 mm	0.23 mm
Printing speed	60 mm/s	30 mm/s	70 mm/s	75 mm/s	55 mm/s
Travel speed	80 mm/s	60 mm/s	90 mm/s	80 mm/s	70 mm/s
Infill (density/pattern)	15% hexagonal pattern	15% line pattern	30% triangle 35° pattern	20% 3D infill pattern	35% triangle 55° pattern
Shell count	2	3	2	3	3
Time taken for fabrication	12 minutes	18 minutes	10 minutes	8 minutes	9 minutes