On Wed, 02 Feb 2005 21:55:41 +0000, ks wrote:


What you want to do after jointing the first pass is to fit a 1/4" ply
sled to the partially jointed part and run the workpiece and sled
through your thickness planer to flatten other side. Then, flip the
board over and without the sled run it through the thickness planer to
flatten the originially jointed side.

Can you please clarify the part about the 1/4 ply sled? I cannot visualize
where and how it is attached, and precisely what it does Thanks

It can be attached with a few dots of hot melt glue or a few short brads
through the ply - just so lang as the brads don't approach the side to be
planed. It is placed under the partially jointed area and raises the
unjointed area of that side above the bed of the thickness planer so that
the board will ride through the thickness planer as if one side were
already completely flat. This assures that the unjointed side will be
parallel to the partially jointed area and therefore will also be
completely flat after planing.

In practice, you should be able to flatten an 8-9" wide board on a 6"
jointer with the help of a thickness planer and plywood sled.

- Doug

--

To escape criticism--do nothing, say nothing, be nothing." (Elbert Hubbard)