Let’s make a vibrating art bot that makes drawings.
Ask the makers to pair up or get in groups, and give each group a device and a set of tools for taking it apart (such as scissors, wire cutters, and pliers). Also provide them with safety goggles to use when taking the device apart.
Encourage them to take the devices apart carefully so that they avoid damaging the parts, because they will need to use them to build the bots. Once the casings (usually plastic) are off, prompt makers to document in photos or sketches how the device is wired. They can lay out the parts on the table. You may want to suggest that they label the parts on the paper underneath, so they can remember the names of the parts and what they do.
Ask the makers to try to reconnect the circuit and make the motor spin once it is out of the casing.
Gather and lay out the basic parts for an art bot: a body (such as a plastic cup), legs (markers or other drawing tools), and joints (fasteners).
If you’re using a cup as the body for your bot, turn it over so the flat part is on top. Then fasten the circuit with the motor and a battery to the top. Tape or attach the power source (usually a battery or battery pack) to the bot’s body somewhere near the motor. Make sure connections are tight and parts are stable on the base. If the battery doesn’t have a holder, wrap a rubber band around the ends to keep the wires in place.
If you want your bot to move around, you’ll need to throw its movements off center. Adding a weight to the rotating motor makes it vibrate, which will help it wobble or wiggle, and thus move in interesting patterns. The motor inside a disposable electric toothbrush already has some weight on the shaft that makes it vibrate. If your motor does not have additional weight, you can press a cork, eraser, popsicle stick, or glue stick onto the rotating shaft of the motor. You can also add leftover craft supplies (such as beads) onto your weight—an off-center weight swinging from the shaft will make the bot shake and hop even more.
To add some legs, tape at least three markers around the rim of the cup, pointing down. You can also use crayons, chalk, pens, or dry erase markers.
Make Observations, Then Tinker
Encourage the makers to take notes on how things are working (or not!) and to try something new. Model the act of tinkering and the process of scientific inquiry: after everyone creates their first bot, invite them to observe how it moves and ask questions about why. Then, suggest that they change the size or location of the weight and notice how this affects the way the bot moves or wobbles and how it draws.
Check the wire connections of your battery to your motor. If you just tape these wires permanently to the battery, you won’t be able to turn off the motion. Stop and think about how to make a simple or triggered switch using parts left over from the original device.
Once the makers have successfully created their art-making bots, encourage them to bring all the bots to a common place, such as the community table or a bot “ring” on the floor, and get them to start drawing together. Step back and encourage the makers to observe the movements of the bots. As everyone watches their bots together, ask questions such as these:
How are the designs of the bots different? For example, do they differ in the placement of the motor, the materials used, and how parts are attached?
Explore how individual bots can interact to make collaborative designs. Prompt makers to create interactions between their bots to make more complex and interesting drawings together. You can encourage makers to keep tinkering and refining their bots.
Here are a few suggestions you could make:
Look at these inspiring art bots. You can also share your projects and experiences with other maker campers
You can support makers in troubleshooting their art bots by sitting down with them and asking questions.
Gather for a reflection circle. You can prompt makers to document and share what they learned.
You can ask
What kind of machines would you want to create next?
Now that you’re finished making with art-,making bots, share your projects with other campers on our Google+ community and your other social media sites, always using #MakerCamp!
Your safety is your own responsibility, including proper use of equipment and safety gear, and determining whether you have adequate skill and experience. Power tools, electricity, and other resources used for these projects are dangerous, unless used properly and with adequate precautions, including safety gear and adult supervision. Some illustrative photos do not depict safety precautions or equipment, in order to show the project steps more clearly. Use of the instructions and suggestions found in Maker Camp is at your own risk. Maker Media, Inc., disclaims all responsibility for any resulting damage, injury, or expense.