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the great orator problem with jointer not keeping wood square
August 18th, 2005 11:54 PM
I recently purchased a craftsman 6 1/8" bench top Jointer/Planer, model 21788, from Sears, on sale. I liked the solid cast iron heft to it, along with the fence system. My problem is, I am making bedposts out of lamintated 5/4 poplar stock, and after making several runs on the machine, I have found that my posts are no longer square (more square when they were just glued), and they are "cupped" from end to end, so much as .010", which with a caliper, seems to be dramatic. The sides, out of square are also off by about .010-080" depending,. I looked at the blades and they appear to be ever so slightly out of adjustment,(laying my speed square across the two tables, at almost 0 cut, one blade barely touches, 2nd one touches and grabbs, pulling the SS about 1/8"; but when I move the SS out to the edge away from the fence, I barely catch the blade, andthe 2nd one just barely touches the bottom of the SS, moving it about 1/64") but I can't see the blades makeing such a huge difference, especially in the entire length of the board. I am newer to precision woodworking and maybe I started off with a project too technical for my own good. Any help, would be appreciated.
Follow Ups:

Little Help please by The Great Orator 2005-08-27 10:22:45

benchtop jointer by Randal 2005-08-27 13:23:37

length of boards by the great orator 2005-08-28 13:18:34

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Jointer Sharpening warning by Adam 2005-09-09 02:07:02

Jointer by PM2790 2005-09-09 14:11:15

Jointer knife setting article by Adam 2005-09-21 19:10:28

spiral and helical heads by Randal 2005-09-22 00:44:15

Spiral Jointer vs rabbet cuts by Adam 2005-09-23 00:06:17
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