<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:times new roman, new york, times, serif;font-size:12pt"><DIV>You can genrally get anything you can think of from McMaster-Carr....</DIV>
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<DIV><A href="http://www.mcmaster.com/#tee-nuts/=6q94xw">http://www.mcmaster.com/#tee-nuts/=6q94xw</A></DIV>
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<DIV>Richard<BR></DIV>
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<B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B> colin chariandy <cchariandy@yahoo.ca><BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> General pattern discussion <nsrca-discussion@lists.nsrca.org><BR><B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B> Mon, April 19, 2010 9:21:44 AM<BR><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> Re: [NSRCA-discussion] Composite Firewalls<BR></FONT><BR>
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<DIV>Lots ot good ideas, thanks all.</DIV>
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<DIV>Does anyone know where I can get the "inserts" for capturing screws through the composite panel?</DIV>
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<DIV style="TEXT-ALIGN: center; OVERFLOW: hidden"><IMG style="WIDTH: 640px; HEIGHT: 480px" src="http://lh5.ggpht.com/_F7eeDzQ74zs/ScpuMwaHl-I/AAAAAAAAGLc/hpKgNHFfauw/s640/Xigris%20%28118%29.JPG" width=640 height=480></DIV>
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<DIV>Thanks.</DIV>
<DIV>Colin.<BR><BR>--- On <B>Wed, 4/14/10, Keith Hoard <I><khoard@gmail.com></I></B> wrote:<BR></DIV>
<BLOCKQUOTE style="BORDER-LEFT: rgb(16,16,255) 2px solid; PADDING-LEFT: 5px; MARGIN-LEFT: 5px"><BR>From: Keith Hoard <khoard@gmail.com><BR>Subject: Re: [NSRCA-discussion] Composite Firewalls<BR>To: "General pattern discussion" <nsrca-discussion@lists.nsrca.org><BR>Received: Wednesday, April 14, 2010, 10:02 AM<BR><BR>
<DIV id=yiv1908275506>I outsource all of my endgrain balsa cutting, gluing, and bagging to the folks at CST composites. . . they do a fine job. . .<BR><BR>
<DIV class=gmail_quote>On Wed, Apr 14, 2010 at 8:43 AM, <SPAN dir=ltr><<A href="http://ca.mc1126.mail.yahoo.com/mc/compose?to=rcmaster199@aol.com" rel=nofollow target=_blank>rcmaster199@aol.com</A>></SPAN> wrote:<BR>
<BLOCKQUOTE style="BORDER-LEFT: rgb(204,204,204) 1px solid; MARGIN: 0pt 0pt 0pt 0.8ex; PADDING-LEFT: 1ex" class=gmail_quote>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<BR><BR>MattK
<DIV class=im><BR><BR>-----Original Message-----<BR>From: Budd Engineering <<A href="http://ca.mc1126.mail.yahoo.com/mc/compose?to=jerry@buddengineering.com" rel=nofollow target=_blank>jerry@buddengineering.com</A>><BR>To: General pattern discussion <<A href="http://ca.mc1126.mail.yahoo.com/mc/compose?to=nsrca-discussion@lists.nsrca.org" rel=nofollow target=_blank>nsrca-discussion@lists.nsrca.org</A>><BR>Sent: Wed, Apr 14, 2010 1:18 am<BR>Subject: Re: [NSRCA-discussion] Composite Firewalls<BR><BR></DIV>
<DIV class=im>Just curious, where do you guys get the end grain balsa? I can't imagine you're cutting your own?<BR><BR><BR>Thx, Jerry<BR><BR>Sent from my iPhone<BR><BR></DIV>
<DIV class=im>On Apr 13, 2010, at 11:46 PM, "Wayne Galligan" &<A href="http://ca.mc1126.mail.yahoo.com/mc/compose?to=lt%3Bwcgalligan@att.net" rel=nofollow target=_blank>lt;wcgalligan@att.net</A>&gt; wrote:<BR><BR><BR><BR>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!<BR> <BR>Wayne Galligan<BR>Skyblazers R/C Club<BR>Waxahachie Texas<BR> ----- Original Message -----<BR> From: Bob Kane<BR> To: General pattern discussion<BR> Sent: Tuesday, April 13, 2010 9:29 AM<BR> Subject: Re: [NSRCA-discussion] Composite Firewalls<BR><BR><BR> 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.<BR><BR>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.<BR><BR>I have been flying this in my YS160DZ powered Temptation for 4 seasons now without any problems.<BR><BR>Bob Kane<BR><A href="http://ca.mc1126.mail.yahoo.com/mc/compose?to=getterflash@yahoo.com" rel=nofollow target=_blank>getterflash@yahoo.com</A><BR><BR></DIV>--- On Tue, 4/13/10, colin chariandy &<A href="http://ca.mc1126.mail.yahoo.com/mc/compose?to=lt%3Bcchariandy@yahoo.ca" rel=nofollow target=_blank>lt;cchariandy@yahoo.ca</A>&gt; wrote:<BR><BR>From: colin chariandy &<A href="http://ca.mc1126.mail.yahoo.com/mc/compose?to=lt%3Bcchariandy@yahoo.ca" rel=nofollow
target=_blank>lt;cchariandy@yahoo.ca</A>&gt;
<DIV class=im><BR>Subject: [NSRCA-discussion] Composite Firewalls<BR></DIV>To: "NSRCA Mailing List" &<A href="http://ca.mc1126.mail.yahoo.com/mc/compose?to=lt%3Bnsrca-discussion@lists.nsrca.org" rel=nofollow target=_blank>lt;nsrca-discussion@lists.nsrca.org</A>&gt;
<DIV class=im><BR>Date: Tuesday, April 13, 2010, 9:57 AM<BR><BR> 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.<BR> <BR> Colin.<BR><BR><BR> Yahoo! Canada Toolbar : Search from anywhere on the web and bookmark your favourite sites. Download it now!
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<DIV class=h5><BR>NSRCA-discussion mailing list<BR><A href="http://ca.mc1126.mail.yahoo.com/mc/compose?to=NSRCA-discussion@lists.nsrca.org" rel=nofollow target=_blank>NSRCA-discussion@lists.nsrca.org</A><BR><A href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion" rel=nofollow target=_blank>http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</A><BR><BR><BR>_______________________________________________<BR>NSRCA-discussion mailing list<BR><A href="http://ca.mc1126.mail.yahoo.com/mc/compose?to=NSRCA-discussion@lists.nsrca.org" rel=nofollow target=_blank>NSRCA-discussion@lists.nsrca.org</A><BR><A href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion" rel=nofollow target=_blank>http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</A></DIV></DIV></BLOCKQUOTE></DIV><BR><BR clear=all><BR>-- <BR><BR>Keith Hoard<BR>Collierville, TN<BR><A href="http://ca.mc1126.mail.yahoo.com/mc/compose?to=khoard@gmail.com" rel=nofollow
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