[NSRCA-discussion] Composite Firewalls

[Steve Hannah]

I use the Reynolds Handi Vac and their ziploc bags with built in check  
valve. Great for small parts like firewalls

Sent from my iPhone

On Apr 14, 2010, at 10:54 AM, Chad Northeast <chadnortheast at shaw.ca>  
wrote:

> Hi Matt,
>
> Can you describe the food saver system you are using?  I would like  
> to find a cheap option to do some simple bagging with!.
>
> Thanks,
> Chad
>
> ----- Original Message -----
> From: rcmaster199 at aol.com
> Date: Wednesday, April 14, 2010 7:50 am
> Subject: Re: [NSRCA-discussion] Composite Firewalls
> To: nsrca-discussion at lists.nsrca.org
>
> > I cut my own end grain balsa....6 pound density blocks cut
> > easily and
> > straight. I use epoxy and 3K carbon cloth as I've described
> > before. I
> > vacuum bag the assembly using a Food Saver system. Once you
> > vacuum bag,
> > you'll never go back
> >
> > MattK
> >
> > -----Original Message-----
> > From: Budd Engineering <jerry at buddengineering.com>
> > To: General pattern discussion <nsrca-discussion at lists.nsrca.org>
> > Sent: Wed, Apr 14, 2010 1:18 am
> > Subject: Re: [NSRCA-discussion] Composite Firewalls
> >
> > Just curious, where do you guys get the end grain balsa?  I
> > can't
> > imagine you're cutting your own?
> >
> >
> > Thx, Jerry
> >
> > Sent from my iPhone
> >
> > On Apr 13, 2010, at 11:46 PM, "Wayne Galligan"
> > <wcgalligan at att.net> wrote:
> >
> >
> >
> > I'll  ditto Bob's response on the 1/64 over 1/4" endgrain.  More
> > surface area there to glue to fuse. I use a lt. ply ring behind
> > the
> > soft mount to hold the blind nuts. Works....gerrrrrrrr... ate!
> >
> > Wayne Galligan
> > Skyblazers R/C Club
> > Waxahachie Texas
> >   ----- Original Message -----
> >   From:   Bob   Kane
> >   To: General pattern discussion
> >   Sent: Tuesday, April 13, 2010 9:29   AM
> >   Subject: Re: [NSRCA-discussion] Composite   Firewalls
> >
> >
> >                  I have had very good results with a firewall made  
> of
> >       1/64" plywood laminated on both
> > sides of 1/4" end-grain balsa
> > using
> > polyurethane glue.  Lightly spray water on the balsa,
> > smear the         poly
> > glue on the balsa and a light, even coat of glue
> > on the plywood.
> > Press everything together, lay a sheet of wax
> > paper on a flat
> > surface,         set the
> > firewall on the paper, cover
> > with another sheet of wax
> > paper,         and stack
> > a LOT of books on
> > top. The poly glue will foam and
> > penetrate         the
> > plywood, the
> > weight is necessary to keep the plywood from
> > being         pushed
> > away
> >  from the balsa by the foaming glue.  The
> > resulting         structure is
> > very light, very strong, and offers a wide gluing
> > surface
> > inside the fuselage.
> >
> > My setup uses a Hyde mount, so I glued
> > 3/32"         plywood
> > disks
> > approximately 3/4" diameter to hold the blind nuts on
> > the
> > backside of the fire wall.  Nothing is needed on the front,
> > the
> > Hyde mount has a large back surface to spread the load.
> >
> > I have         been
> > flying this in my YS160DZ powered Temptation for 4
> > seasons now
> > without any problems.
> >
> > Bob         Kane
> > getterflash at yahoo.com
> >
> > --- On Tue, 4/13/10,
> > colin         chariandy
> > <cchariandy at yahoo.ca> wrote:
> >
> > From:           colin chariandy <cchariandy at yahoo.ca>
> > Subject:           [NSRCA-discussion] Composite Firewalls
> > To: "NSRCA Mailing
> > List"
> > <nsrca-discussion at lists.nsrca.org>
> > Date: Tuesday, April
> > 13,           2010, 9:57 AM
> >
> >
> >    Can anyone advise me on the appropriate composite
> > panel
> >    size and material for Glow powered firewalls? My
> > Xigris came
> >        with 1/8 ply that I'd like
> > to replace.
> >
> >                 Colin.
> >
> >
> >
> > Yahoo!           Canada Toolbar : Search from anywhere on
> >        the web and bookmark your
> > favourite sites. Download it
> > now!
> >
> >
> > -----Inline
> > Attachment           Follows-----
> >
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