What the heck is that?
This is how to make a Bristle Bot. It is a vibrating robot that goes somewhere that have a toothbrush. So, first that we need is of course a toothbrush and you can see this. This is the head of a toothbrush and it is taken a regular toothbrush and used the clippers to cut off the main handle and what is left is just the head here, the bristles.
There are some funny rubber things to this side, the most important thing to notice, that the bristles were at an angled sideways. So, what you want do is find a new toothbrush like this that has the angled bristles.
That is when you pressed down on it, it going to train marched a little bit that way and when you split that properly it will make a cool little robot.
What else do we need? We need some foam tape. We need a petro motor. We need a watch battery. Put the petro motor on the back on this one. It is a couple of wires and if we just hooked it up across with these watch batteries, it will start to go.
Petro motor is a small DC motor with an offset weight on the drive shaft. When the water spins, this offset weight causes the motor to vibrate like crazy. This is what you skip the buzzing signals at a cell phone or a pager, add a couple of wires to the end. You touch those wires that hooked up the motor terminals, right across the terminals of the watch battery and they go to spin and vibrate. So, that is all we really need to get the little motor going.
Next, we are going to add a piece of foam tape to the top of the toothbrush head. Then we mount the motor on top of the toothbrush so that even when the motor spins, it does not touch the foam tape and get stuck there, got it?
Next, we are going to add the battery. The batteries can go between these two wire terminals. If you notice I have got one wire bent down touching the foam and the other is up above, it is going to clean up and down on the top of the battery when it is in there.
Let us see if it works, so got the battery in there and so I got the battery stuck down to the foam tape. Okay, so you got the battery hooked up and the motor is going and then more or less, look at that, see what happens, it really goes.
So, you can see it really goes because of the directionality imparted by the bristles of the toothbrush. So, that is it, in easy five minute toothbrush robot—a Bristle Bot from Evil Mad Scientist Laboratories.
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