Let's Make Robots!

Whack a mole

I'm requesting ideas on how to create a moving part.

 

How would I create the same mechanism that the game Whack A Mole would use to RAISE and LOWER the moles.

 

Any suggestions would be greatly appreciated.

 

Also, if you know a great website for moving parts in general it would be helpful.

 

Thank in advanced!

 

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The solenoid(s) described above can be obtained wicked cheap if you can use 12v... Go to any auto junk yard, they are used for power door locks.

*Update*

 

I think I have found exactly what I'm looking for.  the pneumatic actuators led me in the right direction.  However, since I require something small, my efforts have been focused on using magnetic actuators.

 

Here's my idea.  A magnet, copper coil, and a power source can be used together to create a horizontal movement of the magnet.  On the magnet is a CAM like solid piece that will create a vertical motion.  

 

I'm thinking magnets are the smallest way to go here.  Correct me if I'm wrong.

 

 

Hi, what about this...They are small 1.5 to 6 v solenoid actuators, some sprins and bars... maybe do the job.

 Solenoid.jpg

 Link:

http://cgi.ebay.com/1-5V-6V-MINATURE-SOLENOID-SMALL-BUT-STRONG-bsb7a7_W0QQitemZ350164357777QQcmdZViewItemQQptZUK_BOI_Electrical_Components_Supplies_ET?hash=item350164357777

Hi,

I am new here but I have a related question about solenoids.  If I have a set of solenoid actuators and I want to independently control each of their movements what kind of hard ware do I need?  Is this easily scalable as well?

 

Hope you can help.

 

My suggestion is to make a new thread in the forums to ask this. Give us as much detail as possible. You'll get more responces that way, as opposed to here in this cluttered old thread =)
thanks for the advice telefox.  I will do that.  

I have a set of wac a mole parts 3 to 4 rams 'Bimba' ( up n down thing ) scoreboard counter and a couple moles . use to own a couple of bars with these machines in them.

steve

frankstevy@gmail.com or 1 888 700 8899 

 

Thank you All!

Whacka.jpgTo imitate a pneumatic ram then possibly a cam shaft with a small suspension spring from a model car could work.

 

Now that would be cool!