The vibratory passage is a brush facing down with bristles, on which an electric motor with an eccentric and a battery are fixed. When the motor shaft rotates, an eccentric (a load whose center of gravity does not coincide with the axis of rotation) rotates, creating a vibration. Vibration is transmitted to the brush body and it begins to move. The direction of movement depends on many factors: surface, mass distribution on the brush, angle of inclination, shape of the bristles, etc.
To build a vibratory passage, we need a brush (bought at a hardware store), an electric motor (bought at radio products or removed from an old toy), and batteries.
You can fix the motor on a brush as you like, in this case double-sided tape was used. An eccentric can be made of tin, for example, or by gluing a nut with an epoxy. You can make a fastener out of a paper clip, in general, there is a large scope for creativity.
We start and see what happened) If the brush does not move correctly, then by changing the location of the motor or batteries we will shift the center of gravity - this will change the nature of the movement.
The second option was proposed by evilmadscientist.com and is distinguished by its miniature size. The basis is a toothbrush head, a motor from the vibration of a cell phone (an eccentric attached to it at the factory), and a battery — a lithium tablet, such as those installed on the computer’s motherboard.
In order to start the bot, you need to press the bare wire to the battery contact with a piece of adhesive tape. This bot was even called a “cockroach”). You can make several of these vibro-passages with your friends and arrange competitions.
For vibratory passages, the bristle is not an obligatory factor; with a sufficiently strong vibration, a tin can also move on a 3-foot support.
If you run it on a piece of paper, then the markers will leave a mark with a curious pattern.Source: licrym.org