ripping ash on the table saw

[dirtydeeds]

a couple of questions to those with more experience

to my eyes ash has a grain structure that is similar in some ways to oak




if my eyes are correct, should i expect it to move on the saw like oak does?

is there any relationship between the width of a board (of any timber type) and the amount it will move on the saw?

ie when ripping a small width off a wider board, will the timber move more on the saw than if the same rip was taken off a narrower board?

[mrgrimsdale]

dirtydeeds said:

a couple of questions to those with more experience
to my eyes ash has a grain structure that is similar in some ways to oak
if my eyes are correct, should i expect it to move on the saw like oak does?
is there any relationship between the width of a board (of any timber type) and the amount it will move on the saw?
ie when ripping a small width off a wider board, will the timber move more on the saw than if the same rip was taken off a narrower board?

Not much different to oak Ida thought but someone who often does both might have a better idea.
Width of board; yes definitely, the wider the board the more likely there are to be stresses and for offcuts to bend.
Hence one of the basic rules is always to saw to size before you do any planing; if you rip a planed board the pieces will probably want straightening again. Another reason for not relying on bought PAR timber.

cheers
Jacob

[engineerone]

i thought the idea was to cut slightly over size, then let it settle, and then plane, then finish to size???

paul

[mrgrimsdale]

engineerone said:

i thought the idea was to cut slightly over size, then let it settle, and then plane, then finish to size???

paul

Yes it is

cheers
Jacob