I am getting some weird marks when I am doing rip cuts on my table saw and I was hoping some of you would be able to tell me what I am doing wrong
As accurately as I can measure with an electronic caliper and square my blade is square to the table, and parallel to the fence and the miter slot.
I have a Ridgid 3650, with a Shark guard and the standard fence. The blade is a Forrest WWII 3/32 with stiffener. I also have a zero clearance insert from Lee Valley tools (item 46J85.06).
Now first off the problem still happens with the shark guard completely removed - so it isn't that.
What is happening is that the blade is making marks on the wood, but only the portion of the blade rotating up and as well only the bottom 1/8 or 1/4 inch or so. The top portion is almost glass smooth, as is the portion adjacent to the blade (behind the front teeth but in front of the rear of the blade. in other words, the portion cut by the blade rotating down is fine (perfect actually.)
I tried to illustrate this in the attached diagram. In the top diagram I am trying to show the cut surface of the wood - I stopped a cut once before the wood was pushed all the way through and the red portion shows where the scratches appear.
In the bottom diagram the cut surface is to the left and the view is edge on from the front of the saw. The bottom diagram is what happens when the wood is pushed all the way through to the back of the saw past the rear teeth. The last half inch or so of the wood is rounded off as the rear teeth cut into the wood.
How come the front teeth moving down are cutting glass smooth but the rear teeth moving up are hacking at the wood, and then why only the bottom portion - why not hack the whole surface to pieces?
Please help!