2-DIMENSIONAL AUGMENTED REALITY TECHNOLOGY : MILLING WORKPIECE ALIGMENT USING AUTOMATED MACHINE

Abstract

The objectives of this research were to 1) develop and determine the efficiency of the instructional media with 2D augmented reality technology for centering workpiece on a CNC milling machine and to 2) compare the learning achievement of students to the predetermined standard. The samples in this study included 30 second-year students from the high vocational certificate of the Department of Industrial Technology, Eastern College of Technology. The research instruments consisted of the instructional media with 2D augmented reality technology for centering workpiece on a CNC milling machine, a class exercise, and a post-learning test. In addition, the index of Item–Objective Congruence (IOC) ranged from 0.60 to 1.00. The difficulty level of each question was between 0.20 to 0.80. The item discrimination was from 0.25 to 0.75. Also, the reliability was 0.88. Furthermore, the statistical values for analyzing were average, standard deviation, and instructional media efficiency. The learning achievement was compared to the standard by using a t-test.

The results showed that 1) the quality assessment score of the instructional media with 2D augmented reality technology was considered as a very good level,  = 4.51, S.D. = 0.31, which was the overall, 2) regarding the efficiency of the instructional media with 2D augmented reality technology media, the procedure efficiency (E1) was 81.08 and the performance of result (E2) was 83.55, being higher than the predetermined standard of 80/80. Moreover, 3) the comparison of the learning achievement found that the average overall of the learning achievement score was 25.06 with a standard deviation of 2.62, which was higher than the predetermined standard with a significant level of .05