Rolling motor system describes the motion of a rolling wheel, car tire or can. A wheel rolling over a surface have both linear and rotational motions (also called trans- rotational motion).

These systems have vast applications in automobile engine.

MATERIALS NEEDED

• Iron rod
• Two cans
• 15mm PVC pipe
• Two elbow connectors
• PVC glue

TOOLS NEEDED

• Plier
• Nail

## Step 1: Making the Handle and Steering

MATERIALS NEEDED

• PVC pipe
• Two elbow connectors
• PVC glue

STEPS

• Arrange the Pipe and connectors as shown in the 2nd picture
• Glue them together

## Step 2: Attaching the Roller Cans

MATERIALS NEEDED

• Two cans
• Iron rod

STEPS

• Make a hole at the other end of the pipe
• Insert the rod into the first can, then into the pipe and finally through the second can
• Bend the rods by 1cm at the two ends, leaving a little gap between the can and the point of bending

## Step 3: HOW IT WORKS

When the motor is been pushed over a surface through the handle, the rolling cans have both linear and rotational motions (also called trans- rotational motion). This is a great toy for the kids.

Aspirescience....inspiring possibilities

<p>If you put a few decent magnets on the inside of the cans you could use this to pick up metal items off of your carpet too.</p>
<p>Hmmmm thanks!!! Thats very cool. But it could only works for picking up small metal items. Larger metal items overtime would impedes the movement of the cans.</p>
My guess is that this is a toy for poor kids?
<p>Fred, your guess is incorrect!!! What is important here is the learning content which empowers kids to experience the joy of creating new things irrespective of their background.</p><p>Thanks</p>
<p>What? Is this simply a pvc pipe with cans nailed onto it or am I missing something? I don't see a motor in any of this.</p>
<p>Yeah, it's as simple as that!! I didn't use any motor (as in rotor), you simply need to push it. The mechanism/art of the movement is what i described as &quot;motor&quot;!!!</p><p>Thanks</p>
<p>it must be a conceptual thing, i understand it completely! would have been much more quiet that the &quot;popper&quot; and &quot;lawn mower&quot; my daughter had, she wouldn't push them because of the noise they made. thanks for sharing!</p>
<p>Thanks</p>