That's my problem ... I can't square it up. Where the wood rides
(and hence what blade angle will give a square edge) depends on how
wide the piece is, since the top is curved up away from the blade on
wrote in message
No clue. Does cast-iron "creep" under steady strain and 90degF
temperature swings? The motor hangs from the front of the top. It was
kept in Dad's unconditioned shed in Northern Virginia until he died,
and then spent at least one winter/summer cycle outside under the
On 28 Dec 2003 20:09:16 -0800, email@example.com (Dave
Yes (although it's not strictly creep).
Saw tables are big wide, but thin, castings. Like all castings, they
cool down form the outside first and so they have a stressed skin on
the outside (a bit like tempered glass). Machining _one_ side of this
smooth gives an unbalanced casting that's almost guaranteed to warp.
It also used to be good practice to "season" large iron castings for
six months (or even a year) before machining them. This is no longer
done, for cost reasons. That said, seasoning is no longer as necessary
as it used to be, owing to modern metallurgy being different.
Personally I'd ignore it. If you get that worried, it's time to look
for basically better saws.
Klein bottle for rent. Apply within.
I sold a craftsman table saw with a cast iron top having the same
trouble, the fella I sold it to was an auto mechanic who took the
table off and took it to an auto machine shop that had a wide belt
sander for flattening automotive machine heads. Cost him $15 worked
like a charm according to him. I do think he followed that up with
some 600 grit and a nice wax job to complete it.
It's sounding like the recommendations are:
1. JB-Weld, epoxy paint, or something similar, followed by
sanding it down (probably with a full sheet of paper spray-glued to a
flat piece of glass or some such).
2. Call a local machine shop and see what they can do, or
3. Relax my sphincter, and accept that I can't get square edges
... which would be acceptable if I had a decent jointer, but I was
relying on my WWII blade to make up for that ...
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