My Stirplate... Cheap and Easy Build... - Page 17 - Home Brew Forums
Register Now For Free!

Home Brew Forums > Home Brewing Beer > DIY Projects > Chillers & Stir Plates > My Stirplate... Cheap and Easy Build...

Reply
 
Thread Tools
Old 02-17-2009, 04:24 PM   #161
rcrabb22
HBT_LIFETIMESUPPORTER.png
 
rcrabb22's Avatar
Recipes 
 
Jun 2008
Illinois
Posts: 718
Liked 25 Times on 18 Posts


Quote:
Originally Posted by ballegre View Post
I have a 2" also but I think it's causing me problems. I find that it gets off center easily and gets thrown a lot. I'm using a 1.5L coffee press as a vessel.
What an idea! In my travels I worked for a failed dot.com and when we closed we raffled off the kitchen supplies and I won the Starbucks french press. I might have a starter vessel and didn't know it!!

Do you think you stir bar issues are due the french press vessel or fan speed

 
Reply With Quote
Old 02-17-2009, 06:09 PM   #162
ballegre
Recipes 
 
Nov 2008
Bahama, NC
Posts: 57
Liked 2 Times on 1 Posts


Quote:
Originally Posted by rcrabb22 View Post
What an idea! In my travels I worked for a failed dot.com and when we closed we raffled off the kitchen supplies and I won the Starbucks french press. I might have a starter vessel and didn't know it!!

Do you think you stir bar issues are due the french press vessel or fan speed
I'm thinking the stir bar is my problem but I'm not sure. I tried different fans, many power supplies and many magnets. It works most of the time with deep vortex but I have to play with it a bit. It's not consistent.

I bit the bullet and ordered a 1" stir bar from midwest to test. The french press vessel seems to work fine. Bottom is nice and flat. It might even be pyrex so I can boil and chill without transfer but I don't want to risk it if I'm wrong.

I'm wondering if the flasks have slightly concave bottoms so the stir bar auto-balances and spins better due to less friction ....

 
Reply With Quote
Old 02-17-2009, 10:15 PM   #163
rcrabb22
HBT_LIFETIMESUPPORTER.png
 
rcrabb22's Avatar
Recipes 
 
Jun 2008
Illinois
Posts: 718
Liked 25 Times on 18 Posts


Hopefully not a stupid question but do you really need to glue the hard drive magnet to the steel washer? My magnet feels firmly attached to the steel washer on it's own. Will influence from the stir bar be strong enough to move the magnet from it's location on the fan?

Thanks so much to Tony for posting this. With parts and instructions even an all thumbs guy like me can build this (and I did Wooo Hooo!!)

 
Reply With Quote
Old 02-18-2009, 08:42 PM   #164
ClaudiusB
Recipes 
 
Dec 2007
El Paso, Texas
Posts: 1,354
Liked 100 Times on 77 Posts


My solution to all the different problems I have encountered, flasks shapes, sizes, etc.

The four magnets have a pull force of 5 lb each.


2" stirbar in action.




Cheers,
ClaudiusB

 
Reply With Quote
Old 02-18-2009, 10:12 PM   #165
Tripod
 
Tripod's Avatar
Recipes 
 
Sep 2008
Atlanta, GA
Posts: 642
Liked 7 Times on 7 Posts


ClaudiusB, That is beautiful man!!
__________________
No trees were harmed in the posting of this message but a large number of electrons were terribly inconvenienced...

Primary: First AG Batch! - Irish Red | Bottle: Oatmeal Stout| Drinking: Nearcastle II... | Up Next: It may be time to try a lager

5/2012

 
Reply With Quote
Old 02-18-2009, 10:35 PM   #166
slimer
 
slimer's Avatar
Recipes 
 
Oct 2007
Westmont, IL
Posts: 688
Liked 3 Times on 3 Posts


Claudius, what are the +/- orientation of the magnets?

++--?

 
Reply With Quote
Old 02-18-2009, 11:40 PM   #167
alpo
Recipes 
 
Nov 2008
Austin, TX
Posts: 356
Liked 10 Times on 7 Posts


Claudius's is similar to mine. I use 4 magnets across in a line, --++. I have had the most success with this orientation. It greatly reduces the tenancy of the plate to throw the stir bar at high speeds.

 
Reply With Quote
Old 02-19-2009, 12:05 AM   #168
Anthony_Lopez
 
Anthony_Lopez's Avatar
Recipes 
 
Mar 2008
Groton, MA
Posts: 1,536
Liked 24 Times on 10 Posts


Very nice!! I'm going to start going through this thread to post different magnet setups people have used that have been successful in my original post.
__________________
I'd rather have a bottle in front of me, than a frontal lobotomy.
--Tom Waits

You can't be a real country unless you have a beer and an airline - it helps if you have some kind of a football team, or some nuclear weapons, but at the very least you need a beer.
--Frank Zappa

My Cheap and Easy Stirplate

 
Reply With Quote
Old 02-19-2009, 12:06 AM   #169
Anthony_Lopez
 
Anthony_Lopez's Avatar
Recipes 
 
Mar 2008
Groton, MA
Posts: 1,536
Liked 24 Times on 10 Posts


Quote:
Originally Posted by rcrabb22 View Post
Hopefully not a stupid question but do you really need to glue the hard drive magnet to the steel washer? My magnet feels firmly attached to the steel washer on it's own. Will influence from the stir bar be strong enough to move the magnet from it's location on the fan?

Thanks so much to Tony for posting this. With parts and instructions even an all thumbs guy like me can build this (and I did Wooo Hooo!!)
I actually turned my fan all the way up and managed to throw the magnet right off the washer before I had glued it...
__________________
I'd rather have a bottle in front of me, than a frontal lobotomy.
--Tom Waits

You can't be a real country unless you have a beer and an airline - it helps if you have some kind of a football team, or some nuclear weapons, but at the very least you need a beer.
--Frank Zappa

My Cheap and Easy Stirplate

 
Reply With Quote
Old 02-19-2009, 01:15 AM   #170
ClaudiusB
Recipes 
 
Dec 2007
El Paso, Texas
Posts: 1,354
Liked 100 Times on 77 Posts


Quote:
Claudius, what are the +/- orientation of the magnets?

++--?
Quote:
Claudius's is similar to mine. I use 4 magnets across in a line, --++. I have had the most success with this orientation
NN SS pole

Info:
My fan is a 120mm, 24 VDC.
The 24 V fan I picked has more torque than the 12 V version.
Magnetic shielding (washer) is a good idea for most fans.
My selected fan has metal plates below the plastic covers, no washer required.

Quote:
I'm going to start going through this thread to post different magnet setups people have used that have been successful in my original post.
Great idea!


Cheers,
Claudius

 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Cheap and easy mashtun build Reddog68 Kettles, Mash Tuns & Hot Liquor Tanks 17 01-29-2013 04:14 PM
Stirplate build......voltage question. tcMonk Chillers & Stir Plates 8 10-28-2009 06:46 PM
Cheap and Easy Wine digdan Winemaking Forum 13 06-24-2009 10:10 AM
My cheap & easy keg washer jpc Bottling/Kegging 6 04-06-2009 04:12 AM
Cheap, easy? Rob85 Beginners Beer Brewing Forum 7 11-17-2005 12:49 AM


Forum Jump