The purposes of the research were to create and efficiency validation of computer assisted instruction focused on the practice to CNC Tuming of the standard 90 / 90 and analyse the student leaning achievement of the student after by using computer assisted instruction.The subjects in the study were 23 first year diploma students enrolled in Computer Numerical Control Rajamangala of Technology. North Bangkok Campus. The Researcher using the experiment by let the students do until test before class. And then study by using computer assisted instruction focused on practiced to CNC Turning. After that let students do the unit test again at the class and calculate to find out the efficiency of the computer assisted instruction and analyse the leaning achievement of students after study. The research result revealed that the efficiency of the computer assisted Instruction was efficient in standard 90 /90 Moreover after learning achievement At significant level of 0.01

This Designing and Producing the Bamboo Of Cleave Machine Semi-automatic is Produced in Order to Produce the Machine that help to press the Bamboo which be Able to do Easier than using Workers by Applying the Principle of Pressing Bamboo by Hand and to be the Principle of Producing the Press Bamboo Machines This Machine use AC Motor to be first Power of Machine by Passing the Power through V -bealt to Another Systems. The System is Divided into 3 main sets that are : insert set Cutting set and Moving Equipment which Start from inserting the Bamboo into Rolling set that the Roller can Adjust the Distance According to the thick by using Mechanism. Then. Bamboo will be Moved to Cutting set. Slice the Bamboo to be Strip. Finally the Bamboo and the Strip of Bamboo that we get will be Moved to Moving Equipment by Separating Between the Bamboo that Reused and Strips. The Strips can be used in Agriculture Later. From Testing this Project found that the Mechanical Systems can Produce Each Strip in 3 seconds Approximately and the thick Range that can be Sliced best is 0.3-0.7 Millimeters and Cleave the Bamboo 750 part / hour

In Thailand the many agricultural products are exported to the world market. The dry foodstuff is very popular to transfigure for value increasing. The tamarind paste can be processed to many products such as stirred tamarind candy tamarind and tamarind juice. For the tamarind juice has been used for cooking and mixing in many foods. For the Thailand factory the process to make tamarind juice start from chosen the tamarind paste separated the flesh and heating. However all processes are made by manually. Furthermore the quality of tamarind juice is incompletely-controlled based on operator experiences in order to achieve the damage and quantity decreasing. Based on this condition the process it needs to resolve a problem though engineering knowledge by using the tamarind mixing machine. The tamarind mixing machine consist of electric motor 1 HP 220 Volts AC 1425 rpm gear box ratio by 1 :40 gate agitator blade and two layer bucket with inside and outside diameter is 0.5 m. and 0.6 m respectively. In the system is operated by the electric motor transfer the power though gear box with 35.6 rpm for driving the blade and give the heat by LPG. While within the outside layer of bucket contain some water for transferring the heat to product in inside layer of bucket. The results of experiment with 70 kilograms of tamarind paste by using 0.7 kilograms of fuel. Based on using the convection of water at suitable temperature and period time at 80?C and 65 minutes respectively it found that the quantity of tamarind juice is increased by reducing burnt when compared with the original process and also illustrated to be convenient using.

This project for drinking water filling machine was based on the concept of drinking water contained by villagers for their small households industry or small and medium enterprise. The purpose of this study was to make this machine be able to fill drinking water in 2 sizes 600 cc. and 1500 cc . The drinking water filling machine are consisted of the main components one special water pump 1 phase 220 volts 6 nozzles and 6 solenoid valves for control amount of water. The drinking water filling machine can fill the water rate sizes are 600 cc. and 1500 cc. This machine can fill 600 cc. bottles at the rate 264 bottles / hour while 1500 cc. bottles to the rate 228 bottles / hour. The cost of electricity was 13.53 bath per day.

The technology development has been continuing to solve the cost problem aiming to reduce work time to streamline the existing machines to be more efficient and productive including designing the devices to replace human labor. In present paper the author has an idea to develop and transform the old press machine which has faced the issues of the deteriorated helix core bunt motor when overloaded less productivity to hydraulic cylinder. This paper examined the development of the coconut oil pressing machine from old model to hydraulic cylinder system. In operating principles the developed machine uses the motor pumping the hydraulic oil into hydraulic pump the oil fuel was restricted by hydraulic pump to increase the pressure transmitted to the solenoid valve which is responsible for changing the direction of the oil flow resulting that the cylinder moves up and down under the control system. The cylinder presses the coconut pulp The study of the development of coconut oil press machine was initiated by drying the 3 kg coconut pulp in the sun to obtain the 0.2038 kg (or 160 ml) coconut oil. In this study the hydraulic cylinder presses 3 kg dried coconut pulp into 1.1858 kg (or 946 ml) coconut oil or accounted for 83.08% as compared the old machine. The payback period is within 29 days.