Geeetech Prusa I3 pro W User Manual page 18

a. Fill Density: The infill density defines the amount of plastic used inside the print. A higher
infill density means that there is more plastic on the inside of your print, leading to a stronger object.
An infill density around 20% is used for models with a visual purpose; higher densities can be used
for end-use parts.
c. Fill angle: By default the infill pattern runs at 45° to the model to provide the best adhesion
to wall structures. Infill extrusions that run adjacent to perimeters are liable to delaminate under
stress. Some models may benefit from rotating the fill angle to ensure the optimal direction of the
extrusion.
d. Fill Pattern: It is the pattern of filling shape which effects printing duration.
EasyPrint 3D offers seven infill patterns, including four regular flavors, and three more exotic
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