filling the spiral groove in body tubes

filling the spiral groove in body tubes

Post by Tater Schul » Tue, 20 Feb 2001 01:28:35



does anyone have any advice on this? most instruction sheets say to use wood
filler or dope, but no store in the area knows what i mean by this. does
someone have an alternative? i was thinking of thinning wood glue and after
it partialy sets wipe with a wet rag to remove excess, but i an concerned
with the tube swelling.
 
 
 

filling the spiral groove in body tubes

Post by Jim Bal » Tue, 20 Feb 2001 01:42:03


I posted an earlier message in reply to a request about Estes HPR.  my Bullpup
construction article details how I fill spiral grooves.
http://www.yellowjacketsystems.com/jimball/construction/pup/default.htm

Quote:

> does anyone have any advice on this? most instruction sheets say to use wood
> filler or dope, but no store in the area knows what i mean by this. does
> someone have an alternative? i was thinking of thinning wood glue and after
> it partialy sets wipe with a wet rag to remove excess, but i an concerned
> with the tube swelling.

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filling the spiral groove in body tubes

Post by Jim Yan » Tue, 20 Feb 2001 02:07:57




Quote:
>does anyone have any advice on this? most instruction sheets say to use
>wood filler or dope, but no store in the area knows what i mean by this.
>does someone have an alternative? i was thinking of thinning wood glue
>and after it partialy sets wipe with a wet rag to remove excess, but i
>an concerned with the tube swelling.

Use Elmer's Fininshing Wood Filler,mix some with a little water to thin it
out to the desired consistency.You can also thin it to almost watery
consistency and use it to paint on balsa wood fins,to fill the grain.This
stuff sands very easily,too.
Dont get the other kind of Elmer's wood filler.
--
Jim Yanik,NRA member
remove X to contact me

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filling the spiral groove in body tubes

Post by Kevin Trojanowsk » Tue, 20 Feb 2001 05:48:55


Besides the Elmer's Wood Filler, you can also use Squadron putty, which
should readily be available at hobby shops in your area.

-Kevin

Quote:

> does anyone have any advice on this? most instruction sheets say to use wood
> filler or dope, but no store in the area knows what i mean by this. does
> someone have an alternative? i was thinking of thinning wood glue and after
> it partialy sets wipe with a wet rag to remove excess, but i an concerned
> with the tube swelling.

 
 
 

filling the spiral groove in body tubes

Post by SirWmOsl » Tue, 20 Feb 2001 12:48:52


Make sure you get the Elmers Finishing Wood Filler FOR LIGHT WOODS.  This is a
little harder to find, the tubs look almost identical, but the "For Heavy
Woods" one is much harder, harder to sand, and therefore not good for rocket
uses.
Art T
Art
NAR# 34201 L1
TRA # 6821 L1
 
 
 

filling the spiral groove in body tubes

Post by Tirra » Wed, 21 Feb 2001 11:33:46




Quote:
>does anyone have any advice on this? most instruction sheets say to use wood
>filler or dope, but no store in the area knows what i mean by this. does
>someone have an alternative?

        I've been having much luck lately with Hobbico balsa filler, bought at
an R/C plane shop. It's extraordinarily lightweight, sands ridiculously
easily, and does a wonderful job of filling. Takes a little skill to pick
up on how to use it most effectively, but it repays you in how little
weight it adds to the airframe.

Tir'
still trying to shave grams

 
 
 

filling the spiral groove in body tubes

Post by Steve Piett » Sat, 24 Feb 2001 02:27:46


Quote:

> Make sure you get the Elmers Finishing Wood Filler FOR LIGHT WOODS.  This is a
> little harder to find, the tubs look almost identical, but the "For Heavy
> Woods" one is much harder, harder to sand, and therefore not good for rocket
> uses.
> Art T

The light wood filler is good for filling the wood grain on fins and for
the spiral in kraft paper tubes. PML suggested using the other for filling
the spirals in their phenolic tubes. I basic idea is to use a filler that
is close to or softer than the materal your filling so that when you sand
you remove the filler and not everything around it.

--
Steve Piette                                       Applied Computer Technology

(630) 513-6920                                     St. Charles, IL 60175-6868
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