Come enter the BrewHardware Giveaway!


Home Brew Forums > Home Brewing Beer > Equipment/Sanitation > Homemade Stir Plate Only Works w/ Homemade Stir Bar!?
Reply
 
LinkBack Thread Tools
Old 01-14-2012, 09:16 PM   #1
mthelm85
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2011
Location: Yakima, WA
Posts: 186
Liked 3 Times on 3 Posts
Likes Given: 3

Default Homemade Stir Plate Only Works w/ Homemade Stir Bar!?

I've been racking my brain and trying everything I can possibly think of but my homemade stir plate won't work with my $7 2-inch stir bar. I took a nail and a coffee stirrer and made a home-made stir bar and it works (not perfectly but it will get the job done).

I did it the same way everyone else does - pc power supply, fan, rheostat and a hard drive magnet, all in a cigar box.

I'm thinking if I buy a 1 inch stir bar it will work because the homemade stir bar is 1 inch but anything longer than the magnet itself doesn't seem to work

Anyone else had this same problem? Any suggestions? I've tried ceramic magnets but they didn't work, I've tried a variety of home made stir bars and some work, some don't. I want this thing to work with my store-bought stir bar although I think the coffee stirrer stir bar will be okay because it's completely sealed and the coffee stirrer is made to go in a hot beverage so I don't see how a little bit of star san or starter wort is going to hurt it.

I'm at a loss, any suggestions would be greatly appreciated.

__________________
mthelm85 is offline
 
Reply With Quote Quick reply to this message
Old 01-14-2012, 10:04 PM   #2
ahave
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jul 2009
Location: Pittsburgh, PA
Posts: 167
Liked 2 Times on 1 Posts
Likes Given: 2

Default

Perhaps try spacing the magnets out further on the fan.

__________________
ahave is offline
 
Reply With Quote Quick reply to this message
Old 01-14-2012, 11:50 PM   #3
mthelm85
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2011
Location: Yakima, WA
Posts: 186
Liked 3 Times on 3 Posts
Likes Given: 3

Default

Quote:
Originally Posted by ahave View Post
Perhaps try spacing the magnets out further on the fan.
It's just 1 hard drive magnet, the curved kind. I played around with some ceramic magnets but they weren't strong enough.

I can get the 2 inch stir bar that I bought to spin perfectly on top of the box and inside an empty Erlenmeyer flask but as soon as I try it with a liter of water inside it gets thrown off after about 1 second and it won't work. I'm going to Home Depot to find a silicone O-ring that will fit my stir bar and see if that fixes the problem. I'll update the post a little later.
__________________
mthelm85 is offline
 
Reply With Quote Quick reply to this message
Old 01-15-2012, 01:30 AM   #4
mthelm85
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2011
Location: Yakima, WA
Posts: 186
Liked 3 Times on 3 Posts
Likes Given: 3

Default

O-ring around the store-bought stir bar fixed the problem!!!!

__________________
mthelm85 is offline
 
Reply With Quote Quick reply to this message
Old 01-15-2012, 01:51 AM   #5
BradleyBrew
Feedback Score: 1 reviews
Recipes 
 
Join Date: Nov 2010
Location: Parris Island, USA
Posts: 1,730
Liked 86 Times on 58 Posts
Likes Given: 16

Default

I have the same problem... My stir plate works 100% with anything but my erlenmeyer flask. I can use a mason jar or a smaller Carlo Rossi growler, but as soon as I use my flask the bar will spin for about 30 seconds and just flop to the side.

__________________
BradleyBrew is offline
 
Reply With Quote Quick reply to this message
Old 01-15-2012, 02:13 AM   #6
Chrisl77
Feedback Score: 0 reviews
Recipes 
 
Join Date: Mar 2011
Location: Jackson, New Jersey
Posts: 750
Liked 39 Times on 37 Posts
Likes Given: 1

Default

does the stir bar match the length of your magnet? Stir bars are magnetized at the tips if the bar is longer then your magnet it will not spin right. I glued a big fender washer to my fan and placed 2 magnets onto that. That way you can adjust the magnets to match the stir bar.

__________________
Ocean County home brew club
Chrisl77 is offline
 
Reply With Quote Quick reply to this message
Reply



Quick Reply
Message:
Options
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
What Magnets/Stir Bar do you use for your Stir Plate? Stevorino Equipment/Sanitation 28 10-04-2013 06:32 PM
Homemade Stir Plate Guide with Pics GreenDragon Equipment/Sanitation 6 03-15-2011 01:09 AM
Stir bar for stir plate jedIPA Equipment/Sanitation 2 04-19-2010 04:59 PM
My homemade VHS case stir plate RedOctober Equipment/Sanitation 11 11-17-2008 09:25 PM
Homemade Stir Plate subwyking Equipment/Sanitation 24 04-12-2006 12:39 AM



Newest Threads

LATEST SPONSOR DEALS