On Wed, 10 Mar 2010 15:08:38 -0500, Tony
wrote:

Jon Danniken wrote:
Tony wrote:
I'm looking for a CHEAP squirrel cage type blower.

I'm guessing what you actually want is a tangential fan/blower with an
squirrel cage motor (a step up from a shaded pole motor).

The term "squirrel cage" refers to the type of rotor used in an induction
motor, as shown in the following diagram:
http://hsc.csu.edu.au/physics/core/m...ctionmotor.gif

If you are looking for a CHEAP version, many (older) microwaves used a
tangential fan to cool the transformer and tube, and you can often get the
ovens for free or nearly free if they are broken/too large/too old.

This picture shows a typical uwave blower of that type:
http://farm1.static.flickr.com/103/3...a05d5cb06e.jpg

Note: if you do acquire an old uwave with the intention of taking it apart,
be DAMNED SURE you discharge the internal capacitor, as it can store a
lethal 2400 VDC charge. For more on safely disassembling a uwave, go he
http://www.repairfaq.org/sam/micfaq.htm

Good luck, and please keep us up to date on your progress.

Well I learned something new today! I always thought the tangential fan
was the squirrel cage. I'm guessing a lot of people have that wrong (I
hope I'm not the only one). But I have to know, what is that thing in
the picture? Sort of looks like part of what I hope to build.

A "squirrel cage blower" can be operated by ANY kind of motor, or even
a bicycle chain and pedals.