I ckd out the archives for this group (huge), and couldn't find my specific
saw question/problem addressed but I'd wager it's not a new topic by any
means.
I bought my son-in-law a Delta Cmpd Miter saw for Christmas and he had a
problem getting accurate angles when trimming a workpiece on one end. He
noted that the fence is not straight; i.e., looking down from the top (plan
view) it is a very shallow "V" shape. When he cuts a long board, it's
perfect, but when trimming the end of a piece this "V" shape changes the
angle of the cut. Work-arounds we have considered include installing a
straight hardwood piece as a secondary fence and then shimming behind
it.......it looks like about .030, but hasn't been measured with a feeler
gage yet. Also, one would have to drill an extra hole on each side to bolt
up the hardwood (there's only one hole on ea side of the back of the fence
now) before making a "zero clearance" cut thru the secondary fence.

Is this slight "V" shape there for a safety reason or something? When I got
back to Nebr, I ckd my own rinky dink "Made in China" sliding compound saw
and it's the same way......the fence won't pass a "straight edge test" on
this saw either.

Obviously, I need educated. TIA....Ed Sievers