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Forum topic by JKBogle posted 10-12-2014 09:44 PM 768 views 0 times favorited 5 replies Add to Favorites Watch
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JKBogle

40 posts in 2399 days


10-12-2014 09:44 PM

Because I rock, I was able to obtain a moderately old AMT 6” jointer. I have never owned, operated or adjusted a jointer before. Im pleased with what I got. Its solid, heavy, smooth moving, and overall pretty nice. The one thing I noticed that struck me as strange was the fact that once the fence was tight the planing surface differed by 1-1/2” from the infeed end of the fence to the outfeed end of the fence. Its almost as if the fence is bent or needs shimmed at its connection to the machine. I’m not aware of this being an issue when creating a joint surface, but this would cause trouble when jointing a rabbet, and it just looks funny. I know the fence cannot be bent back as it is cast. Im just wondering if this is a common adjustment that my small jointer knowledge base is not aware of. Ive attached pictures for your viewing pleasure. Let me know what you think.


5 replies so far

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nicksmurf111

361 posts in 911 days


#1 posted 10-12-2014 10:10 PM

That looks like a Delta copy, like every other popular woodworking tool. My Delta rises less than 1/2”. I’d take the fence all the way apart and see what you find. Maybe someone (without much thought) strapped it to a crane? The only thing I see that can possibly bend is the bolt/block. If the casting failed, then it would likely crack.

You must have got a sick deal for it…

-- Nicholas

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Loren

8295 posts in 3109 days


#2 posted 10-12-2014 11:29 PM

I see what you’re saying. The fence may be warped or it
may be excessively skewed. Skewing jointer fences
is sometimes done to achieve a shearing cut in
difficult grain. In any case, the skewing is probably
not the standard setup for the fence.

Lay a straightedge on the face of the fence and
assess if it’s reasonably straight. If warped it can
in fact be bent back to straight. This is one
by supporting the ends and gradually piling on
weight until the iron bends.

If the fence is straight then your mounting
at the end is off somehow. Shimming some
of the bolts with washers may correct it, assuming
it’s something like a manufacturing defect. As
noted above, it could be a matter of improper
assembly in the first place. Taking it apart
and using your brain will reveal some options
for putting it back together the way you want
it.

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nicksmurf111

361 posts in 911 days


#3 posted 10-12-2014 11:40 PM

Oh, I’m looking at the pictures again. The fence is skewed inward. I thought it was belt upward. I’ll look at mine. That seems odd.

Edit: I can’t come up with anything. Take the head clear off (the protactor part with the scale). Lay it flat on a known flat surface and see if it rocks. The back of it looks to be machined flat. Visually inspect all the other parts.

-- Nicholas

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JKBogle

40 posts in 2399 days


#4 posted 10-13-2014 01:09 AM

I looked at it again and part of the problem is the fact that I’m an idiot. The width of the outfeed table is actually less than the width of the infeed table. This was manufactured this way to accommodate the rabbet cut. If you look tat the pic of the outfeed table table, the black line on the left of the silver table surface is lower. If you measure the total width of the outfeed table, to the outside of the black edge, it is still off by 3/4” but that is much less than I initially thought when posting

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nicksmurf111

361 posts in 911 days


#5 posted 10-13-2014 02:09 AM

I was wonder about that. My Delta isn’t like that. The ledge measures just about the same.

-- Nicholas

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