On Wed, 26 Jan 2005 12:10:27 -0500, Silvan
wrote:

Dave wrote:

If you want to adjust the wing with the table, you should be using a
different measuring device. A level, even an accurate one doesn't have
a very high resolution.

True. I was just looking to get some idea how obvious the difference is
with a level, because, well, because the idea occurred to me at the time
basically.

If you are concerned about the wing sagging or riding high out at the
ends you should use a long, accurate straight edge and reference off
the table. Better would be two used as winding sticks to see if one
corner is higher.

I'm actually concerned about the wing being machined wrong. It's flush at
the edge, but it seems like the far end is too high, or some of the
surfaces of the waffle pattern were not ground down to the same plane as
the edges. I'm having trouble figuring out which is which. If the wing is
flat all the way around, then maybe the edge of the wing or the edge of the
saw needs touching up or shimming, but if it's a high spot, then I guess I
need to think about grinding it down.
I'm with Dave. I don't think it is important for the top to be
'level' to any significant degree. It is much more important that it
be flat and this you can find with a couple of straight edges or
winding sticks as Dave suggested. A single long straight edge,
referenced to a single corner and then moved to all three other
corners will give you a corner to corner check and then sliding the
straightedge along with it perpendicular to the fence will show up any
high or low spots.

TWS