Darling Cory, Smith Damon A
Department of Mechanical Engineering, University of New Orleans, United States.
Advanced Materials Research Institute (AMRI), University of New Orleans, United States.
HardwareX. 2021 Feb 3;9:e00175. doi: 10.1016/j.ohx.2021.e00175. eCollection 2021 Apr.
Development of new additive manufacturing materials often requires the production of several batches of relatively large volumes in order to print and test objects. This can be difficult for many materials that are expensive or difficult to produce in large volumes on the laboratory scale. Bioprinter systems are advantageous in this regard, however, commercial systems are expensive or do not have the ability to use photopolymers. Herein, we outline a Syringe Pump Extruder and Curing System (SPECS) modification for inexpensive filament-based 3D printers which enables the use of standard bioplotter materials and photopolymers. The system is capable of using multiple syringe volumes and needle sizes that can be quickly and easily exchanged. The SPECS modification is demonstrated using a Prusa i3 mk3 fused filament fabrication printer to print several 3D objects and films using stereolithography (SLA) photopolymer resin. Geometric accuracy in the X, Y, and Z directions was ±0.1 mm using a 5 ml syringe, 22-gauge needle, and commercial SLA resin. The SPECS system could be of great benefit for laboratories pursing material development in the area of additive manufacturing.
新型增材制造材料的开发通常需要生产几批相对大量的材料,以便打印和测试物体。对于许多在实验室规模下昂贵或难以大量生产的材料来说,这可能具有挑战性。生物打印系统在这方面具有优势,然而,商业系统价格昂贵或无法使用光聚合物。在此,我们概述了一种针对基于细丝的廉价3D打印机的注射泵挤出机和固化系统(SPECS)改进方案,该方案能够使用标准的生物绘图仪材料和光聚合物。该系统能够使用多种注射器容量和针头尺寸,且可快速轻松更换。使用Prusa i3 mk3熔融细丝制造打印机展示了SPECS改进方案,以使用立体光刻(SLA)光聚合物树脂打印多个3D物体和薄膜。使用5毫升注射器、22号针头和商用SLA树脂时,X、Y和Z方向的几何精度为±0.1毫米。SPECS系统对于在增材制造领域进行材料开发的实验室可能非常有益。
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