Newest Threads

**Zorin** · 12-05-2011, 08:10 PM

Well after some trial and error I finally got my stir plate to work. I was able to stack three washers and four hdd magnets on top of each other centered in the middle of the fan. I use a old Dynex case fan and was able stir a 5000ml flask with a 2 inch stir bar with a medium size vortex. I'll post some pictures when I get time. Thanks for everyone's help.

Z

**two_hearted** · 12-09-2011, 05:41 PM

I'm going to attempt to build one of these in an old pelican case. Does anyone see a problem with the plastic being about 1/8" thick on the top. Will my rare earth magnets be strong enough through that?

HenryVance3 · 12-09-2011, 11:55 PM

To loosely quote other members, build it and show us what you made! Only trial will tell how it works

**two_hearted** · 12-10-2011, 12:58 AM

Got everything but the fan, will build on Tuesday. I did have an old broken printer that I stripped for parts (wire) and got two small motors that ran the ink cartridges back and forth. I wonder if I could hook them up to the power source and fix a blade for the magnets on it. I think I'll try it while I wait for the fan and research more info about the motors.

tmd49 · 12-10-2011, 04:29 AM

Here's he fan/rare earth stirrers I have built. Check em out if you need one, I got four.

HenryVance3 · 12-10-2011, 08:11 AM

I would shoot for 500-1500 rpm in whatever you build.

theveganbrewer · 12-10-2011, 03:04 PM

This is the 9.99 build. I paid less than that, but with buying all parts, it would be 9.99. CD-R 50 pack spindle top as the bsae for this model.

**two_hearted** · 12-11-2011, 04:43 PM

Quote:

Originally Posted by maxam

Got everything but the fan, will build on Tuesday. I did have an old broken printer that I stripped for parts (wire) and got two small motors that ran the ink cartridges back and forth. I wonder if I could hook them up to the power source and fix a blade for the magnets on it. I think I'll try it while I wait for the fan and research more info about the motors.

So the motor in the printer is 12-42V, output 3-65W and 6300 rpm. Info here:http://www.compucanjes.com/manuales/RS_455pa.pdf

I assume it's way too powerful, but I want to play with it anyway. My question is, will the 30a 12v rocker and 25 ohm Rheostat and my phone charger power this thing. I'm very green to all of this and don't want to be unsafe. Power supply is input: 120vac out: 9vac.

I realize this I'm hijacking this thread a bit.

**TrainSafe** · 12-11-2011, 06:47 PM

It doesn't sound like your cell phone charger will do the job. It only outputs 9 volts and the motor needs at least 12.

HenryVance3 · 12-11-2011, 06:50 PM

Quote:

Originally Posted by maxam

So the motor in the printer is 12-42V, output 3-65W and 6300 rpm. Info here:http://www.compucanjes.com/manuales/RS_455pa.pdf

I assume it's way too powerful, but I want to play with it anyway. My question is, will the 30a 12v rocker and 25 ohm Rheostat and my phone charger power this thing. I'm very green to all of this and don't want to be unsafe. Power supply is input: 120vac out: 9vac.

I realize this I'm hijacking this thread a bit.

You also need to match up amps which is what will drive the motor. You typically can under volt it a bit but you need the amps on the power source to match.