[meteorite-list] Possible topic - magnetic rake

[ken newton]

Hi Mike,
Here is an interesting yet simple design:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=120104679016
As you can see from the photo, the distance from ground to base can be 
regulated by the four adjustment holes. The quick release drops all 
magnetic debris.
Best,
ken newton



Michael Murray wrote:

> For you folks interested in hunting small bits... How about  
> discussing designs for constructing magnet rakes?  Currently mines is  
> simply a shop magnet on a stick that you can buy in a hardware  
> store.  I got a couple of supermagnets (2"x2" x7mm) and stuck on the  
> underside of that.  Now it is 4" wide.  The collecting area of the  
> magnet is the exposed top and trailing edge.  As I drag it through  
> gravels, if there is anything magnetic, it will work its way up on  
> top of the magnet.   I have found a few pieces with it  but want to  
> build one better.  I am thinking maybe something like a radio- 
> controlled (toy) vehicle that pulls a rake mounted on wheels.  The  
> rake would consist of three 4"x6"x13mm plate supermagnets mounted  
> independently from this wheeled frame.  That way, I could send it  
> around in gravel areas and let it pick up what it can.  I could walk  
> behind it on the edge of a gravel road etc.  Who's else is into this?
>
> Mike
> ______________________________________________
> Meteorite-list mailing list
> Meteorite-list at meteoritecentral.com
> http://six.pairlist.net/mailman/listinfo/meteorite-list
>