: I'm trying to cut out the coaming base rings out of 1/2" A/C
: grade exterior plywood from Lowes (ala Yost kayaks/plywood
: stacked coamings). It's been in the garage for a month or two
: and it's fairly been wet/humid lately. (OH! And, I'm kind of an
: idiot when it comes to this stuff.)

: Ok, so that's the background.

: I'm trying to cut a fairly simple curve of the interior coaming
: ring (even the long side). It seems like I'm hitting something
: hard inside of the plywood. It seems like I hit it and it grabs
: the blade and pulls it out of the socket/connector/thingie.
: There are times I can barely go 1/4" before the blade pops
: out.

: I've tried...
: - making sure I'm not pushing on the blade;
: - trying to make the blade go faster/slower;
: - trying a new blade;
: - trying a more coarse blade (I'm using "fast sheet
: metal" blades for a nice clean cut);
: - trying to attack the cut from the opposite direction.

: I do feel like the piece is fairly securely mounted/clamped.

: Is this just simply the wood being damp from the humidity (MD
: area)? I'm not sure what to do differently - I tried just
: pushing through tonight, but I was a good chunk of time in and
: hadn't cut out of the interior of the ring.

: Ideas? I'm fairly irked.

: -Doug

Wood blade. Blades for cutting metal cut a slot with no extra width, wood blades cut slightly wider so what you have happening doesn't happen. Depending on the brand of saw they usually make blades for plywood, which is what you want.

Bill H.