Introduction: Vibrobot From Cardreader

Picture of Vibrobot From Cardreader

This is a standard vibrobot in a new casing. The guts are hidden inside a card reader body. The vibrobot legs are made out of zip ties. Video link for mobile app Click here

Step 1: Materials and Tools Needed

Picture of Materials and Tools Needed

For making it you need only a few things:

Materials

1. A card reader (chassis donor)

2. A Micro Vibration Motor

3. 1.5V Coin Cell (Button Cell)

4. 1.5V Coin Cell holder

5. Zip Ties

6. Reed Switch

7. A small magnet to activate the Reed Switch

Tools

1. Hand drill

2. Instant Glue like Elfy or Hot Glue

3. Spray Paint, to color the legs of bot

Step 2: Prepare Chassis and Legs

Picture of Prepare Chassis and Legs

Open the Card Reader casing. It was just click fitted in my case. Remove the Card Reader PCB and empty the body. Now cut the zip ties to size, approximately 1 inch each. You will need 14-18 zip ties, based on the number of legs you need. I worked with 14 legs. I used a few colored zip ties, left over from another project. You can paint your zip ties as needed.

Step 3: Mark and Make Holes

Picture of Mark and Make Holes

Mark 14 equidistant points on the card reader bottom. Then make 14 holes with the help of a hand drill or any other suitable tool like dremel. Standard power drill machine should not be used as it can crack the plastic.

Step 4: Glue the Zip Tie Legs

Picture of Glue the Zip Tie Legs

I have added various pictures to show the gluing of zip tie legs. The legs should be bent backward relative to the direction of bot movement. Also the zip ties should be glued so that they point a little away from the center line of the bot, to make it more stable. After all the zip ties are glued and dried, you may need to make them all of equal length. Use a plane surface to check that all the legs are of equal size. Cut the extra length away with a scissor or cutter.

Step 5: Vibration Motor, Battery Holder and Reed Switch

Picture of Vibration Motor, Battery Holder and Reed Switch

Now using super glue, glue the vibration motor to one side of the chassis. Put the battery holder in the remaining space. Originally, I wanted to use a 3V cell and light a LED inside. However, due to lack of space, I had to use a smaller 1.5V coin cell. As you may know, Reed switch is a magnet operated switch i.e. it gets on when a magnet is brought near it. (Thus to switch on and off the bot, we can simply place a small magnet on top of it.) Finally, connect the battery, vibration motor and switch as shown.

Step 6: The Magnet

Picture of The Magnet

I glued the small magnet to another junk PCB so that it doesn't get lost. When placed on the top of bot, it looks like a highly technical switch! I then added a few things to characterize it. And its done.

The magnet can be conveniently attached below the body to keep it from getting lost.

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