There are different types of oil press machine developed previously which are used to squeezernoil from different types of an oil seed. In this Research work one type of oil press, manuallyrnoperated oil press, is improved into electric motor driven mechanical oil press with rack andrnpinion gear system as a main mechanical part of the machine. This improvement is used to solvernthe cost problem, reduce work time, and streamline the existing machine to be more efficient andrnproductive.rnThe main procedures to comply this improvement are design of parts of the machine to getrnoptimized dimensions of the parts and setting the controlling mechanism. In this procedure mainrnparts of the machine are designed to find their dimensions and to select appropriate material andrnalso its stress analysis is performed using finite element analysis software to find stressrnconcentration area and its maximum stress value and then to compare with values obtained in therndesign analysis. The other part and power source of the machine is an electric motor, in thisrnthesis it is also dealt with selection of motor type including its specification for safe andrnappropriate operation. The controlling mechanism of the motor using microcontroller forrnautomatic operation of the motor is selected and assembly language has been written since thernmotor is bi-directional or it rotates clockwise and anti-clockwise, which is used to move the ramrnup and down. After completing the design obtained results and selected materials are safe tornsqueeze edible oil.