Hi Aaron -
that looks like it ought to work...
- do the magnets alternate in polarity? (N S N S etc.. around the disk)
- did you wind all the coils the same direction and lay them all down with the same side up? If so... they should be wired
start - start - end - end - start - start etc..
- are you measuring for AC Volts?
You can check the coil connections:
First measure the output (AC Volts) from one coil while spinning at a known rpm.
Then check across two coils (if its double,you got it - if its 0 - you got it backwards)
Once you get two right, then move on to the next two - it should be double the output of 1 coil, or... 0 - if its 0 you got the connections reversed. If things are reversed its an easy fix since you have all the connections outside the stator.
Does it turn fairly freely, or is it very stiff to turn? Its possible - if you layed the coils right over the laminates that 2 or more could have shorted to the laminates. Probably not very likely though... but possible. If that happened, you can probably fix it by skipping one coil (take it out of the circuit) or... do some dentistry, cut it out of there and replace it. Again - I doubt this is the problem though.
I think with 40 turns/coil you should get pretty noticable output from that arrangment.