Labwarehouse.co.nz

[HerrSchnapps]

Hey, so I'm thinking about getting a 2L conical flask off labwarehouse.co.nz for yeast starters, but because I'm a tight student I really don't want to pay half the cost of the flask in shipping. So, does anyone in ChCh want to get something from the Lab warehouse and combine the order and save on shipping?

[James P]

Probably not, however if you have the washer attached to the fan with glue, then the magnets will stick to the washer without glue meaning you can move them if they are not balanced. My magnets are placed just far enough apart so that the ends of the stir bar are just past the magnets (if that makes sense).

[Mike Neilson]

I think I might need stronger magnets. my magnets are 10mm X 3mm. I can get a vortex but it just spins off within 2-3 mins. When its on top of the box and not in the flask it can spin to the highest speed put it in the flask and It just spins off!!

[James P]

How far away from the flask are the magnets?

[Mike Neilson]

I guesstamate about the thickness of the flask, 2mm of plastic and 1 mm of clearance. With magnets if you double them up does that double there pulling power?

[James P]

Not sure about that one... I would assume if you double them up it would increase the size of the magnetic field.

Try increasing the distance, by putting a cd cover under the flask. I'm not sure if it will help, however I remember something about magnetic field displacement in a science journal....

[HerrSchnapps]

Got mine up and working now, I just kind of copied Ged & James...

[Reviled]

Scuse my ignorance, but how does a fan and some magnets make the liquid in the flask continuously stir??? Seems crazy looking at Geds pic...

Edit : Im guessing it has something to do with that white thing? Is that a magnet too and it goes in the liquid?

[HerrSchnapps]

Yep, it's a magnetic stir-bar, sits in the liquid and spins with the magnets on the fan.

[Ged]

Its magic Reviled :) What makes CCHurch beer taste so good...Nice work Mr Shnapps...I'm now jealous I dont have a light up switch....

[James P]

All this beer porn..... nice work HS.

Best I get on to making stirplate version 2.

[Rusty Chch]

That'd put you 2 ahead of me!

I made a starter for my kit stout at the weekend by shaking it everey time I went past. It made a pretty big difference

[James P]

Just imagine the result from a stirplate.... :)