[sdiy] Cutting Circuit boards

[Andre Majorel]

On 2013-08-13 13:05 -0700, Tom Arnold wrote:
> On Tue, Aug 13, 2013 at 09:50:25PM +0200, Andre Majorel wrote:
> > On 2013-08-13 10:57 -0700, Tom Arnold wrote:
> >
> > > http://www.harborfreight.com/8-inch-bench-top-shear-brake-90757.html
> > > 
> > > Been using it for years, works perfectly.
> > 
> > Are your PCB made of FR2 or FR4 ?
> 
> FR4.  FR2 tends to crack and chip unless its really good quality.
> 
> The one thing I had to do was shim the upper blade holder just
> a tiny bit so that boards with silkscreen would fit without
> scraping the paint off.
> 
> One thing I no longer see are replacement blades ( probably
> the wrong word ) for the beastie.  Used to be able to get them
> from Grizzly.  Fairly easy to sharpen them although I've only
> done that once in many years.

Interesting, thanks. I have access to a shear but have been
afraid to dull the blades with the fibre glass in the FR4. I
don't fancy having to sharpen those 60 cm monsters, seeing how
much trouble I have with simple kitchen knives. <g>

> Interesting.  Actually right now the Grizzly version is
> cheaper at $154.

Sometimes, the quality control or accessories differ between
importers.

-- 
André Majorel http://www.teaser.fr/~amajorel/