When printing a plate (or dish) by an FDM 3D printer, the process normally requires support material, which causes several problems. This paper proposes a method for forming thin plates without using wasteful support material. This method requires several extraordinary parameter values when slicing plates. The experiments show that the plates can, for the most part, be successfully formed using...

OBJECTIVE Boluses are used in high-energy radiotherapy in order to overcome the skin sparing effect. In practice though, commonly used flat boluses fail to make a perfect contact with the irregular surface of the patient's skin, resulting in air gaps. Hence, we fabricated a customized bolus using a 3-dimensional (3D) printer and evaluated its feasibility for radiotherapy. METHODS We designed ...

Abstract As 3D printing becomes an increasingly popular technology, knowledge of the processes employed by a printer becomes more important. In this paper, one particular printer, the Zcorp Spectrum Z510, is studied in terms of its color production. Two approaches to a spectral model are evaluated in terms of their ability to predict output colors of the printer based on input RGB values. The m...

Closed-Loop Control of a 3D Printer Gantry Benjamin McKittrick Weiss Chair of the Supervisory Committee: Associate Professor Duane Storti Mechanical Engineering The use of closed-loop control to improve performance in gantry robots is a wellestablished technology, but adding the necessary sensors and computational hardware to low-cost 3D printer gantries has been generally thought to either be ...

Purpose – This paper aims to verify a new method for accurate part manufacturing using a 3D printer. In particular, the direction and position dependence of the printed results are to be verified within the building area. The results of the accomplished experiments are to be used for the computation of new printer adjustments. Design/methodology/approach – Test cubes with a defined edge length ...

1 Yohei Sotsuka, MD, PhD* Ken Matsuda MD, PhD† Kazutoshi Fujita, MD* Toshihiro Fujiwara, MD, PhD* Masao Kakibuchi, MD, PhD* Sir: R personal three-dimensional (3D) printers have become available. These printers are easy to handle and affordable to buy. Threedimensional mandibular models and auricular chondral framework 3D models built with a personal 3D printer by using free software have been r...

Additive manufacturing has become a widely utilized process in industrial, academic, and household applications. Previous studies have demonstrated that non-optimum humidity conditions can adversely impact the print quality of parts printed from plastic filaments by changing their mechanical properties, such as elastic modulus ultimate strength. This study computational fluid dynamics (CFD) app...