The problem I’m having is difficulty getting perfectly straight cuts with a tablesaw. I'll rip one side, then turn it to rip the other side and watching the edge of the wood as it travels along the fence, it appears as if my previous cut curves away from the fence. The front and rear end of the board maintain good fence contact, it's just this 1/64" gap that appears in the middle.
The equipment I'm using is Delta unisaw with Unifence and a Freud combination blade.
All saw components appear to be parallel. Generally, the material being cut tends to wander from the fence at the far end unless I really force it into place. I'm cutting plywood and some thin hardwood. Maybe this is a stress release problem rather than a cutting issue?
(Solid Wood Machining Forum)
From contributor D:
Sometimes a thin kerf blade can cause a problem.
The proper way to check the straightness of your saw parts is by mounting a dial indicator on the mitre gauge of your saw. Then position the point of the indicator on the plate of a fully raised saw blade. Slide the indicator along the plate and read the difference between the front of the blade and the back. Make adjustments until the front and back of the blade indicate the same. After your blade is set parallel to the mitre slot, then do the same for your fence. Also, Contributor H is correct about thin kerf saws. If the blade is very thin and you are not running stabilizer collars you can have problems with blade deflection.