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  1. 19th February 2014, 08:56 PM #1
    legin
    legin is offline Senior Member
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    Default Jointer tables not coplanar

    Hi everyone

    I have a Sherwood jointer I bought from Timbecon many moons ago. Over the last year or so I have had problems with it.
    I would plane a face on a piece of wood and it would cut for the first part of the pass and then not cut near the end of the pass.
    The model number is a WJ150.

    I have found the outfeed table is not coplaner with the infeed table. The outfeed table dips down away from from the cutter head.(you could also say the infeed table dips down and way, same dog different leg)
    In effect I have a slight hill with a cutterhead in the middle.

    I read another post https://www.woodworkforums.com/showth...ter+adjust+150
    This post described removing the tables and cleaning the surfaces on which the milled dovetails slide on each other.
    I did this and it did not fix my problem, It was not a waste of time now my tables move up and down very nicely.
    The tables are not the easiest thing to remove.

    I have also read elsewhere that shimming material can be used between the base and the table. I would assume you do this only on the outfeed table and leave it alone after that. It seems to me like it would be quite difficult on this machine to place the shims into place.

    Does anyone know of other methods?

    It just seems odd to me that it worked great for quite a few years and now it is virtually unusable.
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  3. 19th February 2014, 11:23 PM #2
    Glenn.Visca's Avatar
    Glenn.Visca
    Glenn.Visca is offline SENIOR MEMBER
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    Default

    Hi Legin,

    first off - let me state I am by no means an expert ... but a lack of available information on the net caused me to write the post you referenced.

    I like you was struggling to work out how these tables can magically go out of coplanarity ... particularly to the extent that I measured on mine.

    I (like you) was trying to determine which is the better table to shim ... and figured the outfeed - coz to a large degree - once its set and locked ... we dont touch it anymore. However, I also feared that while we might get the tables lined up at say 1/16th ... it might be out of whack at 1/8th ... and again out of whack at 3/16th.

    But fortunately I didnt have to go there.

    If your unit is similar to mine (and I'll be honest ... I believe mine would be in excess of 50 years old), is it possible there is a lump or bump on the contact surfaces ?

    See ... I just cant fathom how they get out of alignment ... notwithstanding movement/shrinkage in the cast.

    Thoughts ?
    Glenn Visca
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  4. 20th February 2014, 12:34 PM #3
    legin
    legin is offline Senior Member
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    If your unit is similar to mine (and I'll be honest ... I believe mine would be in excess of 50 years old), is it possible there is a lump or bump on the contact surfaces ?

    See ... I just cant fathom how they get out of alignment ... notwithstanding movement/shrinkage in the cast.

    Thoughts ?[/QUOTE]

    My unit is at best 15 years old. I have never dropped it so I would think there would be no cracks in it.
    I didnt know cast could move/shrink! Maybe if it does that is the problem

    I am going to have another crack at it today or tomorrow, I think I will end up shimming the outfeed table up.

    Legin
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  5. 15th March 2014, 09:50 PM #4
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    Glenn.Visca
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    Hi Legin ... How did you go ?

    Sent from my HTC Sensation Z710a using Tapatalk
    Glenn Visca
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  6. 15th March 2014, 11:05 PM #5
    legin
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    I ended up shimming the outfeed table. It is still not perfect but it is usable now
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