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Subject: Re: Cut FR4 with a band saw?

From: "daemons_ca" <daemons_ca@...>
Date: 2010-04-14

--- In Homebrew_PCBs@yahoogroups.com, Alessio Sangalli <alesan@...>
wrote:
>
> On 04/13/2010 09:11 PM, bebx2000 wrote:
>
> > I use a 4" diamond saw (QEP 60084A 4-Inch Portable Wet Saw). Home
> > Depot current price $52.00.
> This is a really good info.
>
> Right now I am using an utility knife to score both sides and snap it:
> http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=34866
>
> But it requires a lot of effort and the cut is not very clean. If the
> board has to be cut on all the sides it's a nightmare.
>

Thats the method I use. Works very well but you need to use a metal
ruler (I use a thick metal square, something like this
<http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=9541>
) and you need to match your cuts on both sides exactly. If they don't
match perfect, thats when you get uneven edges.
Put the portion of the board to keep under the ruler while holding it
down and snap the excess upwards. I get very clean cuts that way. Oh,
also get yourself a rubber cutting mat (like this one
<http://www.modelkit-builder.com/wp-content/uploads/2009/01/cutting-mat.\
jpg> ) at an art supply shop. It'll save your furniture/kitchen
counters. :)

Marc



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