glenn bradley
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I have got to ask but why even bother running a plane along the edges before you glue up the panels when the jointer will do just as nice of a job?
Excellent question. And there's actually an answer . The material I was able to get will not tolerate being milled completely square AND leave me the thickness I want. That's right, the boards in the top and the pullout are not perfectly square but, they are very close. This presents a challenge in that I cannot use a machine like the jointer that provides a perfect 90* edge to a perfectly true reference face riding against the fence. This is the same problem that I roll my eyes at when people say the jointer fence doesn't have to be true(???); a deviated path results in a deviated edge.
At any rate, the un-true faces cause the edge to machine-joint "almost" square. This means if I put them in the clamps and crush the edges tightly together as they come of the jointer, the faces will be forced even more out of true once the pressure is released because the edges are not uniformly out of true . At any rate (and this is a "cheat") by clamping the pieces to be joined face to face or back to back and jointing the two edges to a common plane by hand, the boards can now be set in their "almost" flat resting position and the edges come together tightly without force.
The 5/4 I usually get is generous enough to mill to 3/4" without issue. If I find material I really like but it is a bit thin, I will just move up to 6/4 and lose the problem in spoil during milling. In this case, I could get neither and so many boards in this piece are under 3/4" or, where I really need the thickness, "cheated" as described. Following glue-up the faces of the boards are no worse off than before glue up . Once I hit them with a cabinet scraper they are acceptably flat, even for me .
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