Servo Controller for Robotics Projects

Servo controller ,by using simple logic,can be used for making joy stick type Robotic Arm
Joy Stick Arm
Beautiful concept........ and as Simple logic...
Can be used for different Applications. Main IDEA is to control something from a safer distance for Humans.
Servo controller ,by using simple logic,can be used for making joy stick type Robotic Arm.
The basic requirement was :
1.Servo should not vibrate
3.Last but not least ,"Should be Affordable "..... Oh GoD...
Here i have used Metallic POT for smooth rotation and some basic components .
This is a nice one and less costly ......