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Author (up) Shah, J.; Snider, B.; Clarke, T.; Kozutsky, S.; Lacki, M.; Hosseini, A. openurl 
  Title Large-scale 3D printers for additive manufacturing: design considerations and challenges Type Journal Article
  Year 2019 Publication International journal of advanced manufacturing technology Abbreviated Journal  
  Volume 104 Issue 9-12 Pages 3679-3693  
  Keywords CAE) and Design ; Computer-Aided Engineering (CAD ; Engineering ; Industrial and Production Engineering ; Mechanical Engineering ; Media Management ; Original Article  
  Abstract Since the advent of 3D printing in the mid-1980s, additive manufacturing has grown steadily and found numerous applications across all types of industries. More recently, the industry has seen a spur of growth as the terms of the original patents expired and new companies entered the market. While there exist several different methods of additive manufacturing, polymer-based material extrusion 3D printing (also known as fused filament fabrication) has become one of the most widely used ones due to its lower cost, ease of use, and versatility. While development has greatly expanded the material availability and improved the quality of prints, material extrusion 3D printers have often faced a challenge in physical scaling. There are inherent design hurdles to the extrusion process when the print starts to grow larger. This paper aims to study the market landscape of extrusion-based 3D printing technology for polymer-based material as well as challenges faced in upscaling this technology for industrial applications. A prototype large-scale material extrusion 3D printer has been designed, constructed, and then tested to gain experimental data on large-scale 3D printing using thermoplastic polymers as a printing material. Results of testing and experimentation verified certain key design elements and how they can improve large-scale 3D printing. Testing also revealed how large diameter nozzles for the hot end introduce challenges not seen in small-scale 3D printers. This paper also seeks to consolidate available information pertaining to large-scale 3D printing into one comprehensive document.  
  Corporate Author Thesis  
  Publisher Springer London Place of Publication London Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0268-3768 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number 1 @ metmet3 @ ShahJ2019L3pf Serial 17819  
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