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Re: trimming layups [was: New future Europa pilot ...]

Subject: Re: trimming layups [was: New future Europa pilot ...]
From: Dave Simpson <davesimpson@londonweb.net>
Date: Fri, 8 Mar 2002 21:33:07
I use tin snips if the time's right, a 3" diamond cutting wheel if it's
fully cured.

Dave Simpson

----- Original Message -----
From: Brian Davies <bdavies@dircon.co.uk>
Subject: Re:  trimming layups [was: New future Europa pilot
...]


> Having tried knife, hacksaw blade and grinder and found disadvantages with
> each, I tried a Tennon Saw.  This is just a wood saw with very fine teeth.
> Virtually no dust, very accurate straight lines.  You can get them without
> the reinforcing strip at the top of the saw blade. These are best.
>
> Brian Davies kit 454
> ----- Original Message -----
> From: "JW" <xs191@attbi.com>
> Subject: Re:  trimming layups [was: New future Europa pilot
> ...]
>
>
> > I support point of knife trimming.  The results are far superior to
> > anything you can do with any grinder, and it is very easy to do.
> > However...  The timing is absolutely critical.  There is a point in time
> > during the curing process where the layup is sort of rubbery.  A sharp
> > utility knife will quite easily cut it and leave a beautiful edge that
> > requires no grinding at all.  No, it won't 'bugger' up the layup.
> > Sometimes it isn't even necessary to sand the edge.  I used this process
> > for all my closeouts.  Again... the key is timing, timing, timing.
> >
> >     Jeff
> >
> > bizzarro@easynet.co.uk wrote:
> >
> > > Hi Rowland
> > >
> > > I have used the little angle grinder wheels for the dremel and they
> > > work very well. They seem to be more balanced than the permagrit
> > > although that too has its uses.
> > >
> > > What is the point of knife trimming anyway? It just appears to bugger
> > > up the layup that you spend so long perfecting. I tried it only
> > > twice, then reverted to the Dremel or craft knife and metal ruler or
> > > pad saw.
> > >
> > > all IMHO
> > >
> > > Ed
> > >
> > > > However, being a stubborn animal, I have since tried trimming my
> > > > layups with both the Dremel (with a Perma-Grit wheel) and the
> > > > aforementioned 115mm angle-grinder & diamond wheel. I find the
> > > > angle-grinder much easier to control (I feel I'd do better with the
> > > > Dremel if its wheel ran at right angles to the body, too), and it
> > > > goes through with pretty much undetectable effort.
> > > /////Eddie Hatcher Bill Lams Nick Crisp///////
> > > ///SouthEastLondonFlyingGroup///G-SELF powered by Jabiru 3300///
> > > www.crispsite.flyer.co.uk/newropa.htm
> > >
> > > The Europa Forum is supported by Aviators Network UK
<info@avnet.co.uk>
> >
> >
>
>



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