I usually make crosscuts of cabinet grade plywood, which are too large for
my tablesaw, with my 7 ¼" circular saw. To avoid chipping the finished
piece I make the first cut a little long. I also always cover the cut with
masking tape, but still get some chipping. I then cut to the exact size
using a straight cutting bit with my router. Using the router leaves a
perfect cut, but I have a project coming up that doesn't leave any room for
an oversize cut unless I go to a second sheet of plywood.
Does anyone have any suggestions for cross cutting cabinet grade plywood
with a circular saw that eliminates chipping? I have tried different
blades, and cutting heights, but so far the best that I can get is about
95%. That other 5% can be a killer.
I have read that the Festool saws do well.
Additionally, I've read that cutting first with a utility knife can get rid
Disclaimer: I've never tried either solution.
I recently posted about using masonite and polyu glue for this. Not
really and insert but another layer on the foot. I notched the
leading edge with respect to blade kerf.
On Tue, 04 Nov 2003 02:06:42 GMT, "Mark Jerde"
I made the panel-cutting guide found in Sunset Woodworking (forget the
exact title). After sizing sheet goods with a 9" contractor saw, it was
It uses Borg Birch plywood instead of masonite.
I've been planning to make a smaller version suitable for half and
quarter sheets. After reading the article, I'm now planning to use
masonite for the smaller version.
I'm using the Freud "Finishing" blade (40T ATB, thin kerf) on a PC lefty
With patience, it's more than Good Enough absent a Unisaur or a
dedicated panel slicer.
I just made 20+ linear feet of cuts on cherry veneer plywood with a Black
and Decker circ saw with a new Oldham 60-tooth carbide-tipped, 7-1/4" blade,
with the good side face-down. The cuts were very clean with virtually no
chip-out. The cuts were good enough to use in my house, I'm not sure how
that translates into "professional use".
Freud has a 40 tooth carbide 7 1/4" blade that does pretty well.
I use it on a PC saw for cut off's and plywood cuts that I can't make on the
Face side down on a circular saw, face side up on the table saw. and score
the veneer with a utility knife.
I have had good luck by making a scoring cut with the saw. I set the cut
to about 1/8" and then run the saw backwards across the plywood. Since, you
are making a very shallow cut, there is very little tendency for the saw to
climb out of control but keep a good grip on it. Then reset the saw for
full depth and make a regular cut.
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