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Specifically , the approach involves a multi-planar Material Extrusion ( ME ) process in which separated build stations with up to 5 axes of motion replace traditional horizontally-sliced layer modelling .
 Material Extrusion, process, build, layer
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:
 Material Extrusion, process, build, layer