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-   -   Bare Bones Stirplate (http://www.homebrewtalk.com/f51/bare-bones-stirplate-41553/)

Seabee John 10-14-2007 10:17 PM

Bare Bones Stirplate
 
http://www.homebrewtalk.com/gallery/...ohnplate14.jpg

Here it is! Thanks to all the folks who shared their intellectual labor.

I didn't have the knowledge do put together a stir plate from parts at Radio Shack... but I did have a hobby in a past life that provided the answer: The old model railroad transformer works well as a rheostat.

http://www.homebrewtalk.com/gallery/...ohnplate13.jpg

I also lacked the nice plastic box in pretty colors so I went basic: I just cut out the center of the fan guard (so it wouldn't interfere with the magnets) and that serves as the platform for the beaker

http://www.homebrewtalk.com/gallery/...ohnplate12.jpg

Since I went cheap on everything else, I figured why stop there: I used a wide mouth glass bottle (1 pint / 473 ml) as my beaker. It may not be able to produce a batch as large as the 1000 ml beaker, but it gets the job done. It also accepts the airlock stopper just fine.

http://www.homebrewtalk.com/gallery/...ohnplate11.jpg

So what do you all think?

eddie 10-15-2007 12:05 AM

Nice work. It doesn't have to be pretty as long as it gets the job done. You might want to consider getting rid of the airlock and simply wrapping aluminum foil around the top of the jar. Check out this link for details.

http://www.maltosefalcons.com/tech/MB_Raines_Guide_to_Yeast_Culturing.php

Nwcw2001 10-15-2007 01:04 AM

BRILLIANT!

That fan guard is AWESOME! I have been looking for an enclosure for mine and you have given me an idea!

Good work!

camiller 10-15-2007 02:22 PM

I don't know if there is any vibration at all with this rig, but I'd probably dip the feet in the stuff they make to dip tool handles in and paint some on the fan grill as well just to keep things from sliding around when you turn your back on it.

Grimsawyer 10-22-2007 09:20 PM

So let me get this straight. Parts list as follows...

Electric train transformer
Fan
Fan guard
magnets

am I missing much?

The train transformer plugs into the wall so no goofing with electronics. Did you have to add a resistor anywhere or just wire the fan up directly up to the transformer?

Seabee John 10-22-2007 11:31 PM

Quote:

Originally Posted by Grimsawyer
So let me get this straight. Parts list as follows...

Electric train transformer
Fan
Fan guard
magnets

am I missing much?

The train transformer plugs into the wall so no goofing with electronics. Did you have to add a resistor anywhere or just wire the fan up directly up to the transformer?


That's just about it. The fan guard was on the fan when I pulled it out of the computer. I snipped the inner rings out because they interfered with the magnets. I just wired it up to the DC side of my transformer and set it on a lower speed. Works like a charm!

I also added some machine screws for legs to keep the fan off the surface for air flow. No ther parts were added

Kevin Dean 10-28-2007 03:57 PM

Nice. :)

It looks as if I'm about 1 part shy of getting that setup. :P I need a grill guard. I'm a PC nut, so I'm able to get them rather easily but I don't have any in my box of goodies.

Great idea!

What are you using as a stir bar?

the_bird 10-28-2007 04:03 PM

Am I insane, or would something like this work, and let you have a variable-speed control on your stirplate?

http://www.hobbylinc.com/gr/mrc/mrcaa300.jpg

If so, anyone got an old computer fan and some magnets they'd trade for some homebrew?

jfrizzell 10-28-2007 04:08 PM

I have a bunch of grill guards laying around.

Check your PM.

Quote:

Originally Posted by Kevin Dean
Nice. :)

It looks as if I'm about 1 part shy of getting that setup. :P I need a grill guard. I'm a PC nut, so I'm able to get them rather easily but I don't have any in my box of goodies.

Great idea!

What are you using as a stir bar?


Seabee John 10-28-2007 06:33 PM

Quote:

Originally Posted by Kevin Dean
Nice. :)



What are you using as a stir bar?

That's the only part of the creation that you gotta go stock on... it's a stir bar from midwest.


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