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24-06-2009 #27
What's a Wha?!!
Dean is up to his eyeballs - when he offered to help it was conditional that I wasn't in a hurry. I'm not (& remember he's doing this for free!).
re selling them...this isn't a commercial venture...& to be honest, even if I wanted to sell them (which I can't imagine it being worthwhile!), there's still an awful lot of further experimentation done wrt the coils themselves (number of of turns, wire gauge, type of core material etc)....the final coil design is still some way off.
I have no real proper coil winding facilities...just something I've put together myself "Blue Peter-esque! ....a 48V DC cooling fan, an encoder wheel striped disk (the pattern which I downloaded off the net, then printed onto a CD label & attached to a CD...I then cut out the middle of the CD & mounted on the fan!), a DC motor PWM speed control circuit (based on t he good old 555 timer!)....an optical pickup cct (to read the encoder disk) and most importantly a little bespoke PIC program that I wrote (which took me yonks as I hadn't a clue about PIC programming!). Previously I've been winding the coils onto small sewiing machine bobbins...but they're too big...hence the need for wanting to wind straight onto the magnets.Last edited by HankMcSpank; 24-06-2009 at 10:38 PM.
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