Recently 3d printer industry has two demands. first is color 3d printing. second is mass production using 3d printer that has large bed. According to previous studies, 3D printed objects have different weights depending on filament colors. 3D printed tensile specimens with filaments of various colors were checked to see they had the same weight. If so, we wanted to see it was statistically significant. As a result, we found that the weight of 3D printed objects was statistically significantly different depending on the filament color. The average weight of 3d printed objects is: Black(8.63g), Blue(8.58g), Yellow(8.53g), White(8.48g), Natural(8.46g), Green (8.45g), Red(8.42g).

Fused Deposition Modeling (FDM), also known as Fused Deposition Modeling (FFF), is the most widely used type of 3D printing at the consumer level. The FDM 3D printer extracts thermoplastic filaments such as ABS (Acrylonitrile Butadiene Styrene) and Polyactive Acid (PLA) through heated nozzles to dissolve the material. It works by applying layers of plastic to build platforms. Various demands for 3D printers increased, and among these demands, there was also a demand for various filament colors. ABS, one of the main filamentous materials for 3D printers, is easy to color in a variety of colors and has been studied to meet the needs of these users. Through quantitative measurements in this work, we confirm that color differences remain depending on the difference in placement on the 3D printer bad. In addition, the temperature of the specimen was measured at the start of 3D printing, during manufacturing, and at the completion of manufacturing, and the inner and central sides remained similar, but the outer sides were 5 degrees lower. These temperature differences accumulate as layers pile up, resulting in differences in weight or color, which in turn meet consumer and producer needs in the 3D printer industry.

FDM 3D Printer is used in maker space for mass production by the maker. Makers desire to manufacture products in a variety of colors using ABS Filaments. The purpose of this study is to identify the relation between the color of resin and each position on the bed. So, when printed using the 3D Printer, we found out the difference in the colors that it appears depending on the position of the bed. To see the difference in color, basic, blue, yellow, white, and black were selected and the bed plate was divided into three sections. Specimens were measured to obtain delta E values between each sections by the chromatic differential system. Obtained delta values were analyzed by the NBS system. As a result, the delta E value of black was found to correspond to “Appreciable”. In most cases, delta E values between the middle and the outer or the inner and the outer was greater than values between the middle and the inner. Using Infrared Thermal Camera, We found that the color difference relates 3D printing positions and temperatures. As a result, the 3D printing bed positions should be considered when 3D printing mass production.

목적: 마독스로드의 색상에 의해 수평사위도과 조절성폭주의 비에 차이가 있는지 알아보고자 하였다. 방법: 시기능에 이상이 없는 대학생 45명(22.40±2.37세)을 대상으로 하였다. 자동굴절검사 (KR-7100P, Topcon Co, Japan)와 포롭터(Huvitz HRT-7000, korea), 시력표투영기(Huvitz HDC-7000PF, Korea)를 이용하여 원거리 굴절이상도를 교정한 후 적색 마독스로드와 백색 마 독스로드 그리고 Imbalance Measure card를 사용하여 원∙근거리사위도와 조절성폭주의 비를 각각 측정하여 비교하였다. 결과: 원거리 사위도는 적색 마독스로드(2.19±3.62△ exo)와 백색 마독스로드(1.79±3.72△ exo) 중 적색 마독스로드로 측정한 외사위도가 더 높았다(0.40±1.14△ exo, t=2.35, p=0.023). 근거리 사위도는 적색 마독스로드(4.94±5.21△ exo)와 백색 마독스로드(3.66±5.66 △ exo) 중 적색 마독스로드로 측정한 외사위도가 더 높았다(1.29±2.80△ exo, t=3.09, p=0.003). 원∙근거리 사위도 모두 적색 마독스로드로 측정한 외사위도가 더 높은 것으로 나타 났다. 경사 조절성폭주의 비와 계산 조절성폭주의 비는 각각 적색 마독스로드(2.46±2.13△/D, 5.23±1.54△/D)와 백색 마독스로드(2.68±2.46△/D, 5.57±1.75△/D) 중 백색 마독스로드로 측정한 조절성폭주의 비가 더 높았으나 유의한 차이가 없는 것으로 나타났다((–0.22±1.67△ /D, t=-0.89, p=0.376), (-0.36±1.26△/D, t=-1.89, p=0.065)). 결론: 마독스로드의 색상에 따라 검사결과가 약간 차이가 있었으며, 적색 마독스로드로 측정했 을 때 외사위도가 높은 것으로 나타났다.