Homebrew PCBs

Perhaps someone can explain how it is possible for friction with aluminum to
sharpen (presumably) heat-treated steel.

-DM

----- Original Message ----- 
From: "Stefan Trethan" <stefan_trethan@...>
To: <homebrew_pcbs@yahoogroups.com>
Sent: Sunday, December 21, 2003 4:21 PM
Subject: Re: [Homebrew_PCBs] Re: Sharpening scissors with sandpaper ???


> On Sun, 21 Dec 2003 21:06:50 -0000, Leon Heller <leon_heller@...>
> wrote:
>
> >
> > ----- Original Message ----- From: "grantfair2001"
> > <grant.fair@...>
> > To: <Homebrew_PCBs@yahoogroups.com>
> > Sent: Sunday, December 21, 2003 7:52 PM
> > Subject: [Homebrew_PCBs] Re: How to cut circuit boards?
> >
> >
> >> I just cut fine or very fine sandpaper with the snips, as if they were
> >> scissors. I only make a few cuts each sharpening.
> >>
> >> I read long ago that this was a good way to sharpen scissors, and it
> >> works for that too. Why it works, I don't know. But it does the trick.
> >
> > My mother used to sharpen scissors that way, 50 years ago. I've always
> > been
> > doubtful about it.
> >
> > Leon
> > --
> > Leon Heller, G1HSM
>
> Be sure that i try it with the next dull scissors i find.
> (no point in "sharpening" sharp scissors this way ;-) ).
> I can sharpen them the conventional way if the attempt fails...
>
> It's really rather hard to believe that this works..
>
> > SHARPENING DULL SCISSORS - Tear off three pieces of aluminum foil, put
> > them on top of each other, then cut the layered foil at least a >dozen
> > times with your dull pair of scissors. Cut a regular piece of paper and
> > see if the scissors are sharp enough. If not, repeat the >procedure. You
> > can also sharpen dull scissors by using the dull scissors to cut a sheet
> > of fine sandpaper several times. These >procedures are not recommended
> > for a good pair of sewing shears.
>
>
<http://recipecircus.com/recipes/carnation037/TipsCleaning/Sharpening_Scisso
rs.html>
>
<http://www.hgtv.com/hgtv/gl_equipment_hand_tools/article/0,1785,HGTV_3582_1
383595,00.html>
>
>
> ST
>
> A toner transfer is soaking this moment...
> I hope it comes out well..
>
>
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