Spike Brewing 12.5 Conical Fermenter Giveaway!

Home Brew Forums > Home Brewing Beer > DIY Projects > DIY Stirplate help

Reply
 
LinkBack Thread Tools
Old 06-09-2009, 02:28 AM   #1
chode720
Feedback Score: 0 reviews
Recipes 
 
Join Date: Feb 2009
Location: Cleveland
Posts: 528
Liked 4 Times on 4 Posts

Default DIY Stirplate help

So I am trying to make my own stirplate and have run into a bit of a problem (well a big problem)

I followed the instruction from Anthony Lopez www.homebrewtalk.com/f51/my-stirplate-cheap-easy-build-86252/ however, when I turn on my stirplate, the fan just rocks back and forth for about a half second and then doesnt spin. The LED light on the rocker switch comes on so I am assuming that it means the circuit is good. I checked all of my connections and all them are on snug and all the wires are crimped in the connectors well.

I cant figure out why the fan won't spin. I have adjusted the knob on the rheostat and there are no changes at all. The only thing I can think of is the voltage on my power supply is too high. After figuring out it wasnt working, I checked the old cell phone charger i am using for a power supply and its printed, 30V, on the cable. Could there be an issue if the voltage is too high? I dont have much knowledge on electrical, but did notice that Anthony says to use a charger betweeen 5-12V

Thanks for any help

__________________

Primary1: Pumpkin Ale
Primary2: Christmas Ale
Pimary3: Apfelwein
Secondary: Sour Brown
Drinking: Warrior Pale Ale, Wit, American Rye
chode720 is offline
 
Reply With Quote Quick reply to this message
Old 06-09-2009, 02:35 AM   #2
PintOfBitter
Vendor
HBT_SPONSOR.png
Feedback Score: 0 reviews
 
PintOfBitter's Avatar
Recipes 
 
Join Date: Feb 2007
Location: USA
Posts: 1,169
Liked 7 Times on 6 Posts
Likes Given: 2

Default

30v is your problem. the fan is rated at 12, but will spin too quickly at that voltage. Mine, for instance needs about 4v to get a proper speed.

You may have damaged the circuitry that drives the brushless motor, but it may be fine and just acting wonky due to the excessive voltage.

Find a lower voltage power supply and hopefully you'll be in business.

EDIT: Just reread your post. the printing on the cable is just the rated voltage of the actual wire and insulation. the voltage of the adapter is printed or embossed on the wall wart.

__________________

-PoB

Maybe you can use these Grain, Hops, Yeast Reference Charts
Come visit WildHopsPrintShop.com- custom bottle caps, beer glassware, tap handles, and more!

PintOfBitter is offline
 
Reply With Quote Quick reply to this message
Old 06-09-2009, 03:54 AM   #3
Thirsty_Monk
Feedback Score: 0 reviews
Recipes 
 
Join Date: Mar 2009
Location: Eau Claire WI
Posts: 76
Default

Not all computer fans are created equal. Do you have another fan to try?
I had better luck with smaller (size) fans and with 9v power supply (12V would be the best in my case).

Do you have your fan wired correctly? Computer fans does not like reverse polarity. Try switching your wires.

__________________

Na Zdravie

On Tap:
AltBier
Bohemian Dark Beer

Lagering/Conditioning:
Bohemian Pilsner

In Fermenter:
Bohemian Pilsner

Thirsty_Monk is offline
 
Reply With Quote Quick reply to this message
Old 06-09-2009, 10:32 AM   #4
chode720
Feedback Score: 0 reviews
Recipes 
 
Join Date: Feb 2009
Location: Cleveland
Posts: 528
Liked 4 Times on 4 Posts

Default

I checked the charger and the output is only 5V.


The fan is wired with the black wire to the earth side of rocket swith and the red wire is to the supply side. There is a white wire on the fan that isn't being used

__________________

Primary1: Pumpkin Ale
Primary2: Christmas Ale
Pimary3: Apfelwein
Secondary: Sour Brown
Drinking: Warrior Pale Ale, Wit, American Rye
chode720 is offline
 
Reply With Quote Quick reply to this message
Old 06-09-2009, 11:48 AM   #5
TommyBoy
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jul 2008
Location: Mentor-on-the-Lake, Ohio
Posts: 546
Liked 1 Times on 1 Posts

Default

Mine did the same thing and when I took the fan out I noticed that the retaining ring for the fan had come off and the magnetic attraction had pulled the fan blade up and out of the rest of the fan assembly once I but the flask and stir bar on top. Check and see if your fan is still secured inside it's housing.

__________________

Heros are made 10 gallons at a time.

Kegged/On Tap - Double IPA
Conditioning - Orange Ale

TommyBoy is offline
 
Reply With Quote Quick reply to this message
Old 06-09-2009, 11:52 AM   #6
chode720
Feedback Score: 0 reviews
Recipes 
 
Join Date: Feb 2009
Location: Cleveland
Posts: 528
Liked 4 Times on 4 Posts

Default

Quote:
Originally Posted by TommyBoy View Post
Mine did the same thing and when I took the fan out I noticed that the retaining ring for the fan had come off and the magnetic attraction had pulled the fan blade up and out of the rest of the fan assembly once I but the flask and stir bar on top. Check and see if your fan is still secured inside it's housing.
Okay I will check that later when I get home. I did try spinning the fan by hand and it semmed to be okay
__________________

Primary1: Pumpkin Ale
Primary2: Christmas Ale
Pimary3: Apfelwein
Secondary: Sour Brown
Drinking: Warrior Pale Ale, Wit, American Rye
chode720 is offline
 
Reply With Quote Quick reply to this message
Old 06-09-2009, 02:15 PM   #7
PintOfBitter
Vendor
HBT_SPONSOR.png
Feedback Score: 0 reviews
 
PintOfBitter's Avatar
Recipes 
 
Join Date: Feb 2007
Location: USA
Posts: 1,169
Liked 7 Times on 6 Posts
Likes Given: 2

Default

I had problems with the magnetic attraction to the stirbar levitating the fan body also. It's not easy to fix, and ends up being a balancing act to get the right distance to the stirbar so that it won't get thrown but won't pull up your fan body.

__________________

-PoB

Maybe you can use these Grain, Hops, Yeast Reference Charts
Come visit WildHopsPrintShop.com- custom bottle caps, beer glassware, tap handles, and more!

PintOfBitter is offline
 
Reply With Quote Quick reply to this message
Old 06-09-2009, 02:22 PM   #8
chode720
Feedback Score: 0 reviews
Recipes 
 
Join Date: Feb 2009
Location: Cleveland
Posts: 528
Liked 4 Times on 4 Posts

Default

I dont have any of the magnets or stir bar with the system yet. I was just trying to test the wiring and the fan before I glued the washer down and attached the magnets.

There was a red, black, and white wire on the fan. Do I need to do anything with that white wire?

EDIT: I did a little research and found that the Dell CPU fans have a 3rd white wire that is the speed control wire. I would venture a guess that without the speed control wire hooked up the fan wont spin?

__________________

Primary1: Pumpkin Ale
Primary2: Christmas Ale
Pimary3: Apfelwein
Secondary: Sour Brown
Drinking: Warrior Pale Ale, Wit, American Rye

Last edited by chode720; 06-09-2009 at 04:22 PM.
chode720 is offline
 
Reply With Quote Quick reply to this message
Old 06-09-2009, 06:20 PM   #9
chode720
Feedback Score: 0 reviews
Recipes 
 
Join Date: Feb 2009
Location: Cleveland
Posts: 528
Liked 4 Times on 4 Posts

Default

/bump

Any other ideas?

__________________

Primary1: Pumpkin Ale
Primary2: Christmas Ale
Pimary3: Apfelwein
Secondary: Sour Brown
Drinking: Warrior Pale Ale, Wit, American Rye
chode720 is offline
 
Reply With Quote Quick reply to this message
Old 06-09-2009, 07:15 PM   #10
PintOfBitter
Vendor
HBT_SPONSOR.png
Feedback Score: 0 reviews
 
PintOfBitter's Avatar
Recipes 
 
Join Date: Feb 2007
Location: USA
Posts: 1,169
Liked 7 Times on 6 Posts
Likes Given: 2

Default

the speed control wire is purely a tach pickup feedback to the motherboard. I really don't think it needs to be hooked up.

Remove the magnet from the fan and see if it spins. I had to put the magnet on standoffs so that it didn't interfere with the motor.

You're using a case fan, not a CPU fan, right? I don't know if a dinky little CPU fan will do the job.

__________________

-PoB

Maybe you can use these Grain, Hops, Yeast Reference Charts
Come visit WildHopsPrintShop.com- custom bottle caps, beer glassware, tap handles, and more!


Last edited by PintOfBitter; 06-09-2009 at 07:18 PM.
PintOfBitter 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
And one more DIY stirplate... -TH- DIY Projects 9 01-03-2012 08:05 PM
DIY stirplate FAN SPEED j_jones84 DIY Projects 19 06-05-2009 04:47 AM
DIY Stirplate questions OGreuelRules DIY Projects 10 05-09-2009 10:04 AM
$5 Stirplate Mirilis Equipment/Sanitation 7 04-21-2009 07:32 PM
Stirplate Score!!!! Revvy Equipment/Sanitation 2 04-11-2008 07:21 PM