With the fence straight I was able to rip boards that were straight
enough to biscuit and glue up. Yeah!

I called DeWalt about this. They have a shim kit that is supposed to
solve the problem and they're shipping it for free. Hopefully this will
solve the problem, otherwise I'll be taking DeWalt up on their 90 day
guarantee.

What I don't understand is that the DW746 has been on the market for
several years and the problem is fairly egregious, yet DeWalt didn't
make the shims a part of the standard design?! I can't be the only one
who has experienced a bowed fence.

Mike

Well, the fence is flat . . . unless the height adjustment butterfly
knobs are snugged up . . . then the fence deflects at the knob
locations . . . . about the same offset I am seeing on the boards. The
Dewalt 746 has 3 knobs to lock down the height of the fence (1 at each
end and 1 in the middle). Each of the knobs exhibits the deflection
behavoir. If the knobs are just barely snug, no problem . . . another
half turn and deflection occurs. Apparently I had the center knob
tightened more than the outer ones.

Can't wait to rip some wood to see if this is the root cause.