I concur with Brian. I bought a dead cheap, hard tooth, 'toolbox saw' from
B&Q. can't remember how much exactly but certainly less than a tenner. Blade
no thicker than a hacksaw, about 18tpi but with a proper saw handle. Works
a treat for trimming and also sawing fully cured layups. Have used it a lot
and still going strong. Cheap enough to chuck away & buy a replacement if it
blunts.
Richard Iddon 533
-----Original Message-----
From: forum-owner@europaclub.org.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
>
>
|