"Ignoramus25661"
wrote in
message
...
On 2013-10-19, Ignoramus23452
wrote:
I have a 3/4" thick steel plate that is 3/4"
thick. It is bowed in the
middle along its length. The worst
un-straightness is in the middle
and it is appx. 1/4". I would like to
straighten it. How can I
realistically do it, if at all.

A followup: We straightened it with a hydraulic
jack and chain. Welded
three 6x3 steel channels underneath to keep it
straight, using jack as
each support was welded. Right now, the worst
un-straightness across
the whole table, is no more than thickness of
one credit card.

http://igor.chudov.com/tmp/table.jpg

i

Channels underneath? Would have
been nice to know that in the OP, eih?
;)} We went off on all kinds of wild
tangents on how to do it.... heh heh...
but it was fun and you got the table
flat! Good thing you just went ahead
and did it the way the guys in the shop
wanted to do it. phil k.