-I have heard of people using bird netting on the underside as a
dipersal medium for resin infusion. I recall sending some info to ROb
on this about a year or so ago. I may be able to refind the info. It
was also mentioned in the KSS forum. -- In
harryproa@yahoogrou
>
> Hello,
> Nida Core web sight has information that may help.
>
>
> http://www.nida-
>
> I noticed that they state that resin may go through scrim by gravity
and to avoid letting resin pool (section 3.1,c). This may indicate
that you can not vacuum resin infuse nida core but I think it would be
interesting to experiment with small pieces to find out. By
controlling amount of vacuum and time for resin to set (hardener %) it
may be possible to develop a method that works. I would definitely
consider it experimental.
>
> George
> --- On Tue, 12/23/08, Rob Denney <harryproa@.
>
>
> From: Rob Denney <harryproa@.
> Subject: Re: [harryproa] Resin infusing honeycomb?
> To: harryproa@yahoogrou
> Date: Tuesday, December 23, 2008, 9:18 PM
>
>
>
>
>
>
> G'day,
>
> Glad it went well, George. Infusing Nida is tricky. I would not
drill holes in the core, you will use a fair bit of extra resin.
George's suggestion would be better. The big problem is the edges.
Exposed edges could be tapered using a hot household iron, but joined
edges will be messy as you don't want a solid resin edge for weight,
bending and stress reasons. A solution would be to taper them both
at 45 and overlap them. On big boats, you could leave a gap and join
the inner and outer skins. You could also bog the edges before
infusing. None of these are ideal. Unless there are labour/time
considerations, i would lay it all up wet and bag it. I would also
talk to Nida and ask for their advice. It is possible that a thicker
layer of scrim would act as a transfer medium
>
> Funny story: I got a phone call yesterday from the guy that bought
the 420 sq m/450 sq' Outleader kite. He makes boating movies for a
living. He has chartered Brindabella (80' maxi) for Sydney Hobart,
sold half the crew positions ($10,000 each!) and because the forecast
is for fresh northerlies, wants to fly the kite in the race and film
it for a future TV show. Could I come over and show them how to work
the kite?
>
> So, I leave here at 0005 on Boxing day, fly to Sydney, get to the
boat at 0900 and we cast off at 1100, race starts at 1300. A beat out
of the harbour, then bear away, drop the main and hoist the kite.
Next stop Hobart. A boat full of kite virgins, including the
inevitable few who think they know what they are doing and the world's
biggest traction kite. Add in the stress of the race, the on board
cameras, a dozen media helicopters, huge spectator fleet and we have
the recipe for a flawless display. ;-) I will let you know how it
went when i get back.
>
> regards,
>
> Rob
>
>
>
>
> On Wed, Dec 24, 2008 at 12:31 AM, Gardner Pomper
<gardner@networknow
>
>
>
>
>
>
> Hi,
>
>
> I got my first hands on demonstration of vacuum resin infusion from
George Kuck of this forum last weekend. Thanks George! He was using
core cell and had drilled holes through to allow infusion of both
sides of the panels. I an now looking to start trying some samples
myself and I wanted to try out nidacore. My question is, can you still
infuse both sides at once on honeycomb? I can't tell how big the cells
are, but it would seem to me that drilling through might open a couple
and you would end up with a big block of resin. Is that ok? I would
think it would be a stress point.
>
>
> - Gardner
> York, PA
>
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