I found about 40 small neodymium magnets on an industrial garbage storage. They seem strong, but they are only .25" thick. Following the tipical construction...
1996
Sean Novak
thesightsmith
Feb 1, 2009 7:55 pm
Say the subject three times as fast as you can. Awesome! I really appreciate you taking the time to share your knowledge and experience. I'll definitely be...
1997
jerry freedomev
freedomev
Feb 2, 2009 1:02 pm
Hi Sean and All, You are welcome. We are here to help guide people to better windgens and other things so you don't waste your time, money and learn...
1998
Sean Novak
thesightsmith
Feb 3, 2009 1:13 am
Hello Jerry, Here's the site, [LINK: http://coet.fau.edu/] Florida Atlantic University's Center for Ocean Energy Technology. This is the guy you want to...
2001
Steve Spence
sspence65
Feb 8, 2009 1:45 am
The magnet plate is 12" in diameter, the magnets are 2" long, and are aligned to the outer edge of the plate. This unit can produce approximately 1000 watts at...
2003
mine baby
themailboxre...
Feb 8, 2009 1:10 pm
Has anyone seen this guys videos on Youtube? i am curious to what you guys think about this mans setup and if it looks like it would work better then most...
2004
Brian Rodgers
outfitnmbr
Feb 8, 2009 2:26 pm
This looks pretty much like ours, cept for the cool(ing) holes cut in the rotors See my newsletter for progress report on our axial flux wind turbine ...
2005
Steve Spence
sspence65
Feb 8, 2009 2:28 pm
Cooling holes aren't usually necessary unless you went with too small diameter wire in the stator. The open design is self cooling. Steve Spence ...
2006
Mart Hale
mart85
Feb 8, 2009 7:10 pm
I watched this, is the next step to pour resin on the rotor to hold the magnets in place? I saw the metal strip on the outside and wondered if it was a form...
2007
David Patterson
odd_kins
Feb 9, 2009 1:10 am
I wouldn't use oak, it's heavy and brittle, yellow pine would be better. the video showed him using either hemlock or douglas fir that was full of knots, it...
2008
Neil Dennis
wombat_eagle
Feb 9, 2009 3:02 am
If you make a jig with the progressive pitch you can laminate a blade that will only take a bit of cleanup to be finished and strong. wombat...
2009
Mart Hale
mart85
Feb 9, 2009 3:02 am
Thanks for the info!... _____ From: axialflux@yahoogroups.com [mailto:axialflux@yahoogroups.com] On Behalf Of David Patterson Sent: Sunday, February 08, 2009...
2010
Steve Spence
sspence65
Feb 9, 2009 3:06 am
You can find many construction photo's at http://www.green-trust.org/photoalbum/ under the two wind sections. Steve Spence http://www.green-trust.org Free...
2011
Brian Rodgers
outfitnmbr
Feb 9, 2009 3:27 am
We have two sets to test on our second turbine, the first set is made from local kiln-dried laminated Douglas Fir which is probably the wood we will stick...
2012
David Patterson
odd_kins
Feb 9, 2009 3:38 am
I have used a lot of sugar pine, it holds up well in the foundry. it's stable but dents easly and doesn't have as much flex at fir. nice looking blades. Dave...
2013
mine baby
themailboxre...
Feb 9, 2009 1:48 pm
Are you sure they are cooling holes our are the holes drilled to make the rotor more light weight. weight is the enemy in wind turbines right? and also, is...
2014
Erik Akia
erikakia
Feb 9, 2009 1:51 pm
What kind of wood would you use and how thick would each laminate be? Thanks Erik...
2015
Neil Dennis
wombat_eagle
Feb 9, 2009 10:38 pm
If it was available I'd use ash, otherwise fir. Probably about 1/4" thick lamina, if the wood is slightly green as is otherwise steam it before putting on the...
2016
Steve Spence
sspence65
Feb 9, 2009 11:15 pm
I like pine 2x6's personally. Takes 15 minutes to make a $5 blade. Steve Spence http://www.green-trust.org Free People Search http://buildittogether.ws/...
2017
jerry freedomev
freedomev
Feb 10, 2009 1:33 pm
               Hi Steve, Neil and All,                       2x6 blades are not as good as FG ones you can buy for under...
2018
Brian Rodgers
outfitnmbr
Feb 10, 2009 1:34 pm
Steve wrote: " like pine 2x6's personally. Takes 15 minutes to make a $5 blade." Yeah, we could use off the rack 2X4s, but part of the coolness of building ...
2019
mine baby
themailboxre...
Feb 10, 2009 1:34 pm
Can you fiberglass the wood blade? has anybody tried that? i imagine using the lightest wood possible would be better for a light weight structure base. Wrap...
2020
Steve Spence
sspence65
Feb 10, 2009 1:41 pm
Our 15 minute blades are almost as good as commercial blades. Within 80% or so based on testing. Just cut the 10 degree angle on the table saw and round off...
2021
Steve Spence
sspence65
Feb 10, 2009 1:43 pm
A 2 x 6 is good enough for our goals. We aren't trying to show people how to make works of art, we are trying to get inexpensive reliable power generation in...
2022
Neil Dennis
wombat_eagle
Feb 10, 2009 2:43 pm
I'd heard that some of the megawatt turbine blades have balsa cores, is this true ? I've steam bent/laminated some pretty tight curves without much ...
2023
Steve Spence
sspence65
Feb 10, 2009 2:46 pm
on our 2x6 blades, we use a 10 degree pitch on the front side (quick table saw cut), and round off the back side for smooth flow. You can see pics at...
2024
David Patterson
odd_kins
Feb 11, 2009 2:11 am
Yes you can fiberglass wood blades. I haven't done it for wind power but have a 118" glider that I will be doing it to. No need to gelcoat, but use a vacuum...
2025
mine baby
themailboxre...
Feb 11, 2009 1:03 pm
Where does someone buy balsa wood for a good price or i was thinking of forming a blade mold for foam the wrapping the foam blades with glass. i have looked on...
2026
Neil Dennis
wombat_eagle
Feb 11, 2009 10:19 pm
You may be able to find a surfboard maker, I think they use balsa. You can cut foam to shape with a hot wire, be easy to make a good blade form from blue...
2027
John
thewhitedogdad
Feb 11, 2009 10:29 pm
Hi David; you might want to consider carving foam for your mold patern instead balsa wood. John ... of forming a blade mold for foam the wrapping the foam...
