Quick Stirplate Magnet Q

[aekdbbop]

Hey guys, trying to finalize my stirplate..

quick question:

should I use two hard drive magnets around the parameter of the fan hub...
or one single magnet in the center?

thanks!

 

[Jim Karr]

Two magnets glued to the fan blades, opposed from each other. Make sure the glue is dry, and make sure they're balanced.

 

[foxtrot]

I would try both situations using good velcro. I covered the hub with velcro and placed velcro on the hd magnets. One magnet worked better for my plate. The velcro holds incredibly well and allows for adjustment. After doing a few starters, I ended up fine-tuning the magnet placement once again. Play around with it. I even figured out you can have the stir bar spinning off-center, creating a bigger vortex and "sweeping" the bottom of the flask (not sure how long the fan would last like that though!)

 

[Scimmia]

One is probably going to be the better option. These magnets are polarized end to end, so if you use 2, you'll have 2 North poles and 2 South poles, it'll probably be harder to keep the bar where you want it.

 

[aekdbbop]

cool.. tried both with the 2 magnets and with just the one...

the one magnet worked best for me..

finally got it working right!

time for some pics...

 

[Vermicous]

Cool, I wasn't sure if I should declare another harddrive at work "dead". One should be sufficient.