Stir Plate Help

[hoptualBrew]

I'm looking to make a custom stir plate for my carboys. I have a few 4" stir bars but they do not work on my current small stirplate. I will need something along the lines of a computer fan with a heavy duty magnet to spin the 4" stir bar. Mechanics & I are not well acquainted, so if anyone is able to help recommend specific parts and a build it would be greatly appreciated. Thanks in advance, cheers!

 

[evandena]

A stir plate for your carboy? Why?

 

[hoptualBrew]

Hopefully to keep yeast suspended and expedite the fermentation process. I know of some production breweries that make use of recirculation pumps in the primary to speed things up to drop down to FG as quickly as possible. Thats the theory at least, will it work? I dont know.. yet!