This is a circiut of NE555 TIMER IC flasher circuit.Model consist capacitor , resistance, LED,s ,PCB and 555 IC. This 3D model will be use full to demonstrate flip flop of 555 ic . You can render , 3D print , 3D circuit design and many more .

The IC is connected as a astable multivibrator with a duty cycle of about 10%.In figure 1 the LED will be ON for a short period of time and OFF for a longer period. The duty cycle can be reversed if the LED is connected as shown in figure 2 but the battery consumption will also increase due to the fact that the LED will stay ON for a longer period of time. in figure 3 for a variable flash rate, replace the 100k pot with a 100k in series with a 10k resistor. And that is a simple 555 led flasher circuit.