[NSRCA-discussion] Composite Firewalls

[Richard Lewis]

You can genrally get anything you can think of from McMaster-Carr....

http://www.mcmaster.com/#tee-nuts/=6q94xw

Richard




________________________________
From: colin chariandy <cchariandy at yahoo.ca>
To: General pattern discussion <nsrca-discussion at lists.nsrca.org>
Sent: Mon, April 19, 2010 9:21:44 AM
Subject: Re: [NSRCA-discussion] Composite Firewalls


Lots ot good ideas, thanks all.

Does anyone know where I can get the "inserts" for capturing screws through the composite panel?


Thanks.
Colin.

--- On Wed, 4/14/10, Keith Hoard <khoard at gmail.com> wrote:


>From: Keith Hoard <khoard at gmail.com>
>Subject: Re: [NSRCA-discussion] Composite Firewalls
>To: "General pattern discussion" <nsrca-discussion at lists.nsrca.org>
>Received: Wednesday, April 14, 2010, 10:02 AM
>
>
>I outsource all of my endgrain balsa cutting, gluing, and bagging to the folks at CST composites. . . they do a fine job. . .
>
>
>On Wed, Apr 14, 2010 at 8:43 AM, <rcmaster199 at aol.com> wrote:
>
>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" &lt;wcgalligan at att.net&gt; 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 &lt;cchariandy at yahoo.ca&gt; wrote:
>>
>>From:           colin chariandy &lt;cchariandy at yahoo.ca&gt; 
>>
>>Subject:           [NSRCA-discussion] Composite Firewalls
>>To: "NSRCA Mailing List"           &lt;nsrca-discussion at lists.nsrca.org&gt; 
>>
>>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!       
>>
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>
>-- 
>
>Keith Hoard
>Collierville, TN
>khoard at gmail.com
>
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