DIY Fail...

[atoughram]

Congratulations!

 

[IrregularPulse]

Thanks for the links but why would I buy a stir plate when I'm talking about making one in the DIY section?

Because after fighting with one and getting it to spin right and not throw the bar every 5 seconds, it's what you'll eventually end up doing I built one myself and it worked ok for a while, but was always a pain. If I get back into brewing, I'll just buy one for $50.

But congrats on getting it working. As far as not much speed adjustability, that's due to the size of your pot. Not a big enough range of resistance.
Did you try it out in just water first to watch the stir bar? I assume so. What kind of motion were you getting? Spinning or rattling or..? What kind of vortex were you pulling down?

 

[kgx2]

With water the bar was fine and the vortex went top to near the bar with no rattle just a swirling noise. That's why i think i need more magnets to help with the thicker liquid.

 

[atoughram]

With water the bar was fine and the vortex went top to near the bar with no rattle just a swirling noise. That's why i think i need more magnets to help with the thicker liquid.

My prebuilt unit rattles too - I think its an issue with the bottom of the flask more than the stirrer itself.

 

[atoughram]

Double post...

Flash sucks..