On 02/06/2015 18:58, fred wrote:
On Tuesday, June 2, 2015 at 6:39:04 PM UTC+1, harry wrote:
"Bill Wright" wrote in message
...
Syd Rumpo wrote:
I had some plywood sheet cut to size in B&Q a couple of years
ago and the cut edges were quite splintery and ragged - a not
very sharp blade, I think and the operator almost said as much.
It didn't matter a toss in my application.

However, now I need some 12mm ply sheets cut where the quality
of the cut edge does matter. What should I reasonably expect?
Do these places usually make good quality cuts?

Cheers
If they set the blade so that it only just gets through the wood
it will attack the surface at an angle and that greatly reduces
splintering.

Yes, this is the way to go.

Or you can score the cut with a Stanley knife and make the saw cut
on the "waste" side of the score. The outer lamination of faced
plies is very thin, you can easily cut right through it.

he would need to score two cuts equalling the thickness of the teeth
on the main saw blade. Not an easy task to carry out if there is any
length to the cut.

If you need a clean cut with a circular saw, make the cut twice - the
first with the blade set to just knick the surface about 1mm deep, then
cut again with a full depth pass.


--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/