Big $3 Solderless Bristle bot

Picture of Big $3 Solderless Bristle bot
Toothbrush sized bristle bots are for kids.  Lets take these bots one size bigger and see if we can get them to clean our floors.

Only $3 and takes all of five minutes.  Completely solderless to boot.

For a smaller bristlebot kit thats great for adults and kids, visit  You'll have a little bristlebot running aound your place in no time.

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Step 1: What You Need

Picture of What You Need
Most everything you need can be bought from the local Dollar Store, Radio Shack, or you probably have it in your house right now.

Dollar Store Items
$1. A Cheap Electric Toothbrush. We're stealing it's motor.
$1. A cheap scrub brush.  Try to get one with little to no rubber grips on it.

Radio Shack
$1. AA Battery Holder.  With attached leads.
$0.50 A little switch.  Optional really.

Around the house
Copper Wire.  Steal from other stuff if you can, you only need a tiny bit.
Hot (melt) Glue Gun
Wire Strippers (Optional)
AA Batteries.  

Step 2: Solder if you want...

So my battery holder didn't have attached wires, so I added some with solder.  Again, you don't need to solder anything if you don't want to.  Just buy a battery holder with wires.

Step 3: Switches Me On

Picture of Switches Me On
Oh cheap little switch, how nice you are.

Hook up your positive wire to the middle of the switch.  Be sure to wrap that wire around there nice and tight!

Then wrap another wire around one of the other legs.

Seriously though, you only need like 2 inches of wire for this entire project.

Step 4: Motor Mouth

Hook up the wire from the switch to the motor.

Hook up the negative wire from the battery.

Don't worry about positive and negative when it comes to two tabs on the motor.  In this case it doesn't matter one bit.

Make sure you wrap the wire around!

Now... give it a test....

How long does it really works???

jbrune12 years ago
i have a question can u use a used toothbrush
as long as the motor works
jbrune12 years ago
and i wanna make a bigger 1 Joshua Zimmerman so can u give me some instructions on a bigger 1 or is is just double everything please help
JoshuaZimmerman (author)  jbrune12 years ago
Yeah, just make everything bigger. It works. Look around youtube, some people have made ones that you can ride.
That is so cool!!!!!!! Woot!!!!
sithlil2 years ago
is this kinda like one of those little hexbug things?
JoshuaZimmerman (author)  sithlil2 years ago
Only bigger, cheaper, and more fun.
satish473 years ago
Tried it and loved it!!!!!!!!!!!
JoshuaZimmerman (author)  satish473 years ago
I'm glad to hear it worked! It's such a fun thing to make, and darned easy and cheap.
goldhawk3483 years ago
this is the easyiest robot i have ever done
JoshuaZimmerman (author)  goldhawk3483 years ago
Building them larger is much more fun interesting, in my opinion, the building them small. Plus you can always use it to clean your floor.
cool bristlebot, im gonna make this one too! the only one i have made was from a small toothbrush head and a pager motor! thanks :) !
JoshuaZimmerman (author)  simplebotics3 years ago
The motor I pulled out of the dollar store electric toothbrush was surprisingly powerful. I keep forgetting to go and pick up another one.

Post a photo of your finished bot here! I'd love to see.

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