why do i have to build a custom stir bar? can't i just order one off the 50 shape stirbars from a website and attach the stirbar with hot glue to the blades of a computer fan (side A)? and then have a small electric motor in side C with a magnet attached to the tip of that motor? will this work?
i will see if i can do a sketch later on today but i would want the external piece to be as small as possible- using less than 8 watts of electricity, and at the end cost less than $25 in parts.
the shape of the external piece does not really matter as long as it is not really really bulky...
there is A , B and C
A- is a small powered boat blade
B-is a piece of 1 to 1/2 inch glass
C- is the power (i don't know how it will power it yet)
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So how is it possible to have a motor send electricity though the glass to power the small blade?
what would i...