8351
A path planning methodology is proposed for FFF based on stress orientations .
 path planning methodology, FFF, stress, orientations
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: manufacturing standard, machanical property, manufacturing process, material, engineering feature, process parameter, machine or equipment, application, process characterization, enabling technology, biomedical, concept or principle 
Text: {0} 
Answer:
 path planning methodology, FFF, stress, orientations