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#Post#: 1415--------------------------------------------------
Re: 360 watt Gull
By: sut Date: February 3, 2014, 6:49 am
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I like that Idea of offering 2 different diy 360 one with wings
assembled and one with out
#Post#: 1416--------------------------------------------------
Re: 360 watt Gull
By: sut Date: February 3, 2014, 7:02 am
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What I found out by mistake one day when I had my windmill down
for movement of the magnets on plate (trying to get more power )
I grabbed one of the wings and I noticed it made a sound (air
escaping) Just 1 I thought it was weird but it meant that the
others were sealed so good that it made them like a balloon
which intern helps keep the shape with out any center support
(wing former) I think
#Post#: 1417--------------------------------------------------
Re: 360 watt Gull
By: crazyguy Date: February 3, 2014, 7:14 am
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Hi I 'm back. just sitting down with my "house blend " (good) .
Ive been watching video 's of sheet metal bending and don 't see
anyone doing the extreme angle needed for the TE. How would they
bend it past 90 degrees? I made some blades like you suggested
out of paper and the technique seems simple, I like the folded
part on the inside rather than the outside. The multiple foam
pieces inserted over the spars would limit the span to a
multiple of those inches but was one of my thoughts for one of
my blade fab experiments.
Im going to try and figure out how to do the extreme bend in the
TE.
You should try the bamboo veneer. It follows the curves nice and
easy (all the grain goes one way) easy as paper.
#Post#: 1418--------------------------------------------------
Re: 360 watt Gull
By: crazyguy Date: February 3, 2014, 9:11 am
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Maybe I could make this?
HTML http://youtu.be/HNei19dJLgI
#Post#: 1419--------------------------------------------------
Re: 360 watt Gull
By: sut Date: February 3, 2014, 10:57 am
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Yea been thinking of the same thing but found this at HF ! BUT
you get what you pay for !!!
HTML http://www.harborfreight.com/18-inch-bending-brake-39103.html
#Post#: 1420--------------------------------------------------
Re: 360 watt Gull
By: crazyguy Date: February 3, 2014, 1:35 pm
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I also thought that you could have a die. male and female pieces
and put the aluminum between them and "press" the angle in.
But also thought that a separate bent trailing edge piece would
be good. Just ship the flat pre-cut blade skins and the pre-bent
trailing edges and the customer could glue them together.
OR..... Since I don't have a bending brake I would do it this
way in the video.
HTML http://youtu.be/0jnKduJsnrA
HTML http://www.northerntool.com/shop/tools/category_metal-fabrication+benders+manual-bending-brakes
Below is Die method, press in to make bend.
#Post#: 1421--------------------------------------------------
Re: 360 watt Gull
By: crazyguy Date: February 3, 2014, 4:35 pm
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why not cast each coil seperately?
then screw them to the base.
I'm making a GOOP /TE PROTOTYPE. Goop drying on TE now.
I made it as in the vid above and am letting the goop dry with
the TE pointed down so gravity will cause self leveling of the
Goop. …like this ....> \/
#Post#: 1425--------------------------------------------------
Re: 360 watt Gull
By: crazyguy Date: February 4, 2014, 7:40 am
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The Aluminum Flashing - Goop Trailing Edge came out perfect !!!
Sheared the aluminum flashing with a flat bed (office style)
paper cutter.
Have my "House Blend" with me.
HTML http://youtu.be/hI3imaTtINc
#Post#: 1435--------------------------------------------------
Re: 360 watt Gull
By: crazyguy Date: February 4, 2014, 5:29 pm
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I don't think your going to have to fill the whole cavity. Seems
like four or five foam ribs should do it.
#Post#: 1436--------------------------------------------------
Re: 360 watt Gull
By: lynx wind Date: February 4, 2014, 5:43 pm
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That was quick work. How did you cut the ribs?
Maybe three to four depending on how stiff the blade is by
itself.
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