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Advice needed on vibrating motors.? Answered

For a quirky present for a friend I am making a sink plunger seat like this one . Instead of just a saddle I plan to make the seat bigger and in the design of something vaguely saddle/potty-shaped (a veebeam if you are interested, as he worked on them). Anyway for amusement rather than kinky reasons(!) I thought it would be cool to make it vibrate with a remote control.

And as I know nothing about vibrating things, my question is does anyone know what I should be searching for? Brand names would be great. It doesn't have to be strong but it needs to be felt through a thick pad of stiff padding/foam and preferably with a separate remote control. Also, is there anything I need to be worried about or such like?

Sorry for such a rooky question but I've spent two hours on the internet and all I kind find is how to convert vibrating chairs into XBox chairs and things that are not safe for work(!) Thank you for any help
Poppy

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Drobs

Best Answer 6 years ago

As the guys above have mentioned you're looking for an eccentric rotating mass motor, also known as:

ERM motor
Vibration motor
Pager motor

For help with the mounting and driving it, all the information you need is here:

http://www.precisionmicrodrives.com/application-notes-technical-guides

For the remote control you will probably need a microcontroller (try Arduino for starts) unless there's an 'out the box' remote control switch someone knows of?

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steveastroukDrobs

Answer 6 years ago

Its cheaper quicker and more effective to cannibalise a cheap toy to get the gear you need.

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steveastrouk

6 years ago

Find a nice motor, and put an eccentric weight on it. That's all it needs to be. The remote control is the easy bit....

Steve

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minipoppysteveastrouk

Answer 6 years ago

Gee thanks everyone this was very helpful.
And I always thought an accentric mass motor was my great aunt Nin in her old morris miner!

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rickharris

6 years ago

You have 2 choices for a DIY approach -

1. A smallish motor with an off center weight on the shaft - A hose clip may be enough.

2. A butt kicker. As these are called. A loud speaker with a weight attached to the cone - When fed with low frequency sound via an amplifier it vibrates

https://www.google.co.uk/search?q=butt+kicker&hl=en&prmd=imvnsfd&source=lnms&tbm=isch&ei=hpN8T_jMEZHJ8gO2mvCcDQ&sa=X&oi=mode_link&ct=mode&cd=2&ved=0CD4Q_AUoAQ&biw=1920&bih=960