Hi All, I'm a new member here, glad to join the group. Just thought I could help with this question. The magnetic flux across the air gap depends on the...
I am new to the forum and considering building an axial flux wind turbine probally 8 or 9ft. After looking at several designs, they all seem to be similar in...
There's virtually no cogging in these air core designs. 3 phase is simpler, and the 12 mag, 9 coil is easy to produce. That's my choice, and I don't see many...
How much does it cost to produce one of those 12 magnet, 9-coil, 3-phase generators for a 10-foot diameter rotor? What's the cost breakdown between the various...
It's a 24 magnet generator, 12 per plate. Last one I did was about $500. Probably closer to $1k now with magnet and copper prices what they are. I bet you...
Hi Steve: A possible option for some builders might be one of my alternators for 1100 bucks including shipping. www.PM-Alt.com I learned how to make a solid...
Are you Volts DC or Volts AC? Thanks, Larry in TEXAS From: axialflux@yahoogroups.com [mailto:axialflux@yahoogroups.com] On Behalf Of Doug Selsam Sent: Friday,...
Good catch. Those were polarized on the end, not the face. That said, cruise ebay looking for similar bargains, and you might find some magnets that will work...
I use a cheap chinese brand, but not for wind turbines. What are you attempting to measure that a good multimeter doesn't show you? ... -- Steve Spence -...
We recently obtained a cheap ($60) Taiwan storage o-scope that looks to be based off a cheap android phone. It works, and because all we need it for is to...
I don't know about Dan's, but I've used this one. http://tinyurl.com/apqhhfd ... -- Steve Spence - KK4HFJ Http://www.green-trust.org Http://www.essnmag.com ...
MUCH THANKS Steve! Don Simmons ... From: Steve Spence <greentrust@...> To: axialflux@yahoogroups.com Subject: Re: [axialflux] Re: Affordable Oscilloscope...
I've seen O'scope Apps for the i-Phone, with some added hardware required. I bought an old used O'scope and had to pay almost as much again, just for a...
Basically the performance on the generator. I am considering using wedge neo mags that are .5" thick. testing it with different stators with varying coils....
Ok, but what do you wish to observe that a meter won't tell you? A meter will tell you amps drawn, and volts produced. It won't tell you waveform, but that's...
Hi, there are low cost scopes out there that have LCD displays but also applications that use your computer as the scope. I don't know how practical those...
Testing generators with PC connected scopes is great. Capture a quick spin of the generator and measure the time between peak voltages (or zero crosses). That...
Hi Don! (howdy neighbor!) The one Steve linked to looks exactly like what we got. Email if you'd like to visit and check it out. -- Dan Fink, Executive...
For a small inexpensive oscilloscope I've used an open-source one sold by SEEEDstudio.com, that you can find here: http://goo.gl/2lyod It's sample rate is...
A while back I built an axialgenerator with 9 coils of 70 turns 15GW with 24 1/4" wedge magnest. Does any one have any experience building a generator using...
Several years ago I designed these wind power design calculators. We have many new members since then, so I'm reposting for your enjoyment. feedback welcomed: ...
Our favorite (and in our opinion, the best) DIY guide to off grid power systems and DIY wind turbine construction has to be "Homebrew Wind Power" by Dan...
