Balsa Filler Question

Balsa Filler Question

Post by James Hawxhur » Thu, 28 May 1998 04:00:00



Quote:

><snip>

>and the balsa nosecone was dented also. The fin repair was easy and that is

First group posting -- sure hope this doesn't go 400 places I didn't
intend...

Anyhow -- old custom gunstock and woodworking trick: remove finish,
apply damp towel over dent and iron gently with iron set on "hot" -
monocote type iron works too.

Expands wood fibre raising dented portion with no weight gain -
whiskering will be noted.

 
 
 

Balsa Filler Question

Post by Bob Kapl » Thu, 28 May 1998 04:00:00


Quote:

> nearly ready for new paint. My question is about the nose cone. Is there a
> good filler that I can use on balsa that will not appreciably add to the
> weight of the nose cone or break up the symmetry (The dent is on one side)?

First try to restore the dent. Dampen the area and heat the dent with a heat
gun, soldering iron, or whatever. The steam will usually swellthe wood back
to shape. Minor filling and refinishing might be needed, but some of the
damage may be reversable.

BTW, did the fin break, or did it crack along the grain. It seems common for
beginners to get the graint he wrong way, or to attach the wrong fin edge to
the tube. I've seen many a ertha with the root and leading edges reversed.
The rear square fins on the Phoenix seem to always ge put on wrong, thus
break on every flight.

        Bob Kaplow      NAR # 18L       TRA # "Ctrl-Alt-Del"

Kaplow Klips:   http://members.aol.com/myhprcato/KaplowKlips.html
NIRA:           http://ourworld.compuserve.com/homepages/Mark_Bundick/LAUNCH.HTM

 
 
 

Balsa Filler Question

Post by Konrad Hambri » Thu, 28 May 1998 04:00:00


Quote:

>  --<snip>--                            The fin repair was easy and that is
>nearly ready for new paint. My question is about the nose cone. Is there a
>good filler that I can use on balsa that will not appreciably add to the
>weight of the nose cone or break up the symmetry (The dent is on one side)?
>Any pointers will be appreciated.

Like others have suggested, the damp-heat method can
work wonders.  Once done, you might want to try some
Bondo spot filler from a local auto supply house.
( the smelly red stuff in the tube ).  The balsa cone
can be good as new in no time ;-)

Quote:

>My kids had long faces when they retrieved the rocket for me. I told them that
>it was part of the hobby and by that evening they were happy to see that the
>Bertha had a new fin. I've seen other threads in RMR that talk about kids
>developing a throw away mentality. When things break around our house my kids
>don't think twice, they ask when can we get parts and how long will it take to
>fix. To me this is half the fun and thankfully my kids seem to be developing
>this same philosophy.

Good observations, good philosophy and good luck ;-)

-- kjh
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Balsa Filler Question

Post by Jon38 » Thu, 28 May 1998 04:00:00


OOOOOOPPPPPSSSSSSSSSSSS!!!!!!!!!!!

Just realized that you posted this via Deja News.  Boy, do I feel silly.
John O'Donnell  NAR 60742  Sr. L2                                              
                                                       CSAR Sec 113
Visit my web page at http://members.aol.com/Jon3854/index.html