8494
We investigate the effects of smoothing the toolpath and material over-extrusion on the corner rounding and the corner swelling , for 90° and 30° turns .
 toolpath, material, swelling
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:
 toolpath, material, swelling