Vibrating race-cookie (really!)

Let's Make Robots Beginners
1

Hi guys,
For a project for our youth festival, I’m trying to make a cookie ‘race’ to the other end of a table, by fixing some components to it.

Now, I used a Lilypad battery holder and a buttoncell battery (CR2032) to power a VPM2 vibrating disc-motor.
The result you can see here: https://youtu.be/MArCyGiFerI

The thing is: I can’t seem to get it moving enough.
Do any of you have any tips: maybe other components to use?

I would like to keep the cost per cookie as low as possible, while being able to direct the cookie in a certain direction.
What do you guys think?

Thanks!!!
Steven

3

Hi @SDeBeukeleer !

Thank you for contacting RobotShop.

You have a nice and interesting project there!

Have you been thinking to add maybe one more vibrating motor?

You can also look at different small vibrating motors that we sell: https://www.robotshop.com/en/miniature-vibrating-motors.html

4

Hi @igor_X !

The thing is, which motor would be most suitable? Right now I’m sticking the diskmotor to the cookie with some frosting.

With the VPM2, it vibrates, adding a small 2mm mini motor didn’t help that much.

What would you recommend?

5

Hi @SDeBeukeleer,

It seems that the motor is too small for that size of the cookie.

If you could find a bigger motor it would be good. Or any motor with high RPM but just add eccentric load to its shaft.

6

@igor_X How would I do that - adding eccentric load without too much hassle?
I’m a noob you know :wink:

7

Adding unevenly distributed weight to the shaft. Something like on this product: https://www.robotshop.com/uk/seeedstudio-mini-vibrating-motor.html

8

Ok, I get that, but how do you add weight?

I suppose you’ll just have to settle with the weight the motor comes with?

9

Hey @SDeBeukeleer,

You would have to machine a part similar to this one:

Capture
Capture537×527 20.2 KB

10

RIght.
No option for us, it would have to be a standard of the shelf part.
I’ll try with this one.

Steven

1 Like
11

Ok @SDeBeukeleer.

We would like to see the final outcome and the race :slight_smile: