The development of accessories for the sewing system aims to 1) To design and develop accessories for sewing system 2) To reduce the time of taking off the bobbin inserting the bobbin filling the bobbin and increasing the efficiency in the continuous sewing process. 3) To study consumer satisfaction towards accessories for sewing system The sample group used in the study was a sewing worker Monster Screen Factor Company Limited amounting to 20 people. The instrument used to collect data was a questionnaire on the satisfaction of the consumer group towards accessories. for sewing system and prototype accessory kit For the sewing system the amount of 1 set was randomly distributed questionnaire. Data analysis uses percentage statistics. Arithmetic mean and standard deviation The results of the study of preliminary data showed that most of the samples were female. less than 25 years old marital status Monthly employment and has an average monthly income of less than 15000 baht from a study of consumer satisfaction with accessories As for the sewing system it was found that most of the samples had the highest level of satisfaction. Accessories for the sewing system that could reduce the threading time the most followed by the accessories for the sewing system. Continuous sewing efficiency are suitable for use It is necessary for the garment industry. Improves the working efficiency of the sewing machine. and accessories for sewing system There is a quick and easy work process. with mean 4.95 4.70 4.55 4.40 and 4.25 respectively

The objective of this research is to construct a phased array device to be able to inspect all sizes of welded pipes and to study materials suitable for creating a phased array. The results obtained from testing both materials are PLA plastics carbon fiber. In order to obtain the force exerted on the material and the intensity of the force exerted on the same material it is found that the strength of the comparison between the two materials is different from the PLA plastic test. Of carbon fibers will be strong and lighter than plastic. Result from the test for Elastic In the impact and strength tests of both materials it can be used to examine pipes with a circumference of 50 centimeters to 100 centimeters and to use a 34 mm. length phased array probe with a width of 24.6 mm. 36 degrees angle and then adjust the strap as needed to reduce the steps during the use of inspection equipment.