He does nothing, but simply decorates the table. Nothing moves and does not glow in it, and it does not require any nutrition. And you will definitely succeed in it, because you will not make it from the same trash as the author of Instructables had under the nickname c.acton1141 at your fingertips. You can even call him not Walter, but as you like. This is this "robot”, But in reality it’s just a sculpture, and not even kinetic.
The master took this piece of the mechanism from the old music center:
On the side there was a pulley with a belt. To it, c.acton1141 glued a curly spring plate taken from a faulty satellite receiver with an integrated recorder:
So the robot got a moving “arm”. The second, motionless, the master made of a piece of a printed circuit board and a plastic lever. And just stuck it:
DC motor:
Well, what is he - not a "neck"?
And the handle of a variable resistor from the same center is an excellent “head”. With two "eyes" made of plastic parts of different sizes, one of which is with a spring:
And the master made the “legs” out of two parts from a CD player, one of which was with a roller:
In this form, the “robot” turned out to be quite stable, it remains to add such a pin as in the following photo so that the “head” does not rotate on the shaft of the “neck” motor:
Done:
... And you will definitely succeed in it for others.