"Renata" wrote in message
fence, it moves about 1/16". Don't know if I've got something set
wrong or it's a "feature". Other issue w/saw train would be if it was
sturdy enough to cut sheets of ply.

It's certainly not a feature. I own an Excalibur fence and it locks down
perfectly. Things I'd investigate are that all fastening bolts for both
rails are properly tightened. Looking along the length of the rails, are
they straight? Next I'd look at the fence itself and make sure that none of
the adjustment screws under the front lock down lever are missing or
otherwise loose. It's also possible that the lock down lever itself is not
working as it should. Have a look at that and possibly disassemble it to
look at the cam on the lever itself for pits or uneven surface.

1/6" out of alignment is a visibly noticeable misalignment. Can you see the
fence move out of alignment when locking down or does it just end up the way
without any noticeable movement? Depending on how it happens will point to
particular areas to investigate.

Some will tell you that having lock down rails on both sides of a saw is
functionally bad for a fence, but that's a load of crap. Most fences of any
quality whether two rail models or single rail models work well if they're
adjusted properly. And, the Excalibur is a well made, good working tool.