On 19/07/2012 18:08, ss wrote:
On 19/07/2012 18:01, ss wrote:
I have some planks of wood that are slightly `banana shape`. Is there an
easy way to make them true again, if I use a guide on a circular saw or
jigsaw it will follow the `banana` curve.
I have a table saw, jig saw and circular saw.

I am sure there must be a simple way but just cant work it out.

thanks

I should have mentioned its not warped on the length but on the width,
if that makes sense. it is 6 feet long 6 inches wide and it is the 6
inches wide that has arched, so for example if I lay the 6 ft length on
a flat surface the middle of the length would be say 6.5 inches and each
end would be 6 inches. It came off a neighbours fence that had
horizontal slats.

Having a little difficulty visualizing which direction it has warped
here....

If with the plank laying flat on a surface, its bowed up in the middle
by half and inch, then to plane it flat you would need to reduce its
thickness by over an inch. That may leave you with nothing but sawdust.
The best you can usually do in those cases is chop it into shorter
lengths and flatten them.

If the bow is on the other axis, so you just have flat plank but without
a decent straight edge on either side, then clamp or pin a striaght
plank to it and run it through the table saw to get a straight opposing
edge. After that its easy.


--
Cheers,

John.

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