I went out this morning and bought a load of maple for a shaker-style
table that I'm building from my wood supplier, Diverse Hardwoods in
Longmont CO. My plan was to begin by ripping the 1-1/2" legs from a
piece of 8/4 maple. I get about 8" into the cut when the saw starts
bogging down. I react by advancing the wood more slowly, but no joy --
the blade continues to slow even when I'm not advancing the wood at
all. I managed to hit the off switch before the blade had completely
stopped, but some smoke is arising from the wood. To my surprise I
could not pull the wood back out from the blade. The board was gripping
the blade so tightly that I ended up having to pound the wood backwards
with a wooden mallet to get it out. It must have taken 50-100 hard
blows before I finally get the wood away from the blade.
When I finally got the board out and finished sweating I checked the
blade for runout and the fence for alignment, and everything seemed to
be OK. (Saw is a BT3000 with a thin-kerf WW II blade.) The saw started
up OK, so I started making test cuts to try to figure out what had
happened. I first ripped a piece of 3/4" plywood, no problem. Clean
cut, no burning. Being emboldened by this I ripped, in succession, a
piece of 2x4 pine, a piece of 6/4 oak, and finally a piece of 10/4
poplar. All cut cleanly, no burning or other bad behavior.
Have I just had my first experience with reactive wood? What's up with
this? Is it a common occurrence?
Vince Heuring To email, remove the Vince.