How to use a jointer fence? - Router Forums
 
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post #1 of 7 (permalink) Old 10-07-2004, 09:39 PM Thread Starter
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Default How to use a jointer fence?

Hi,

I am using a jointer fence of polyethylene. The out-fence is 1 mm proud of the in-fence and I am using a 19 mm bit. It seems that the jointed face is concave and that I am removing more from the middle of the wood than from the ends.

When there is sufficient past the bit I keep the pressure against the out-fence and down and release the pressure from the in side of the bit. As more goes past the bit I spread the pressure along the out-fence. What am I doing wrong?

Any help would be appreciated.
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post #2 of 7 (permalink) Old 10-07-2004, 10:44 PM
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Are you sure the bit and the fence are aligned?


Ed
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post #3 of 7 (permalink) Old 10-07-2004, 11:06 PM
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It is possible that the out-fence is not parallel with the in-fence. I had that happen to me.

Aaron

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post #4 of 7 (permalink) Old 10-07-2004, 11:11 PM Thread Starter
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Quote:
Originally Posted by Spacemanspiff
It is possible that the out-fence is not parallel with the in-fence. I had that happen to me.

Aaron
The fence has been checked and is accurate. It is 50 mm thick and 40 mm high.

Garry
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post #5 of 7 (permalink) Old 10-07-2004, 11:21 PM
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Quote:
Originally Posted by garryjc
The fence has been checked and is accurate. It is 50 mm thick and 40 mm high.

Garry
If the bit is high to the out-feed this is what happens. I would check again the out-feed to bit alignment. If you are using a flushtrim bit make sure the bearing is just isolated in relationship to the out-feed. This is the same thing that happens to jointer/planners (machines).

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post #6 of 7 (permalink) Old 10-07-2004, 11:56 PM Thread Starter
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Quote:
Originally Posted by reible
If the bit is high to the out-feed this is what happens. I would check again the out-feed to bit alignment. If you are using a flushtrim bit make sure the bearing is just isolated in relationship to the out-feed. This is the same thing that happens to jointer/planners (machines).

Ed
Sorry, I should have said that I had isolated the bearing to the out-feed.

Garry
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post #7 of 7 (permalink) Old 10-08-2004, 12:38 AM
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Quote:
Originally Posted by garryjc
Sorry, I should have said that I had isolated the bearing to the out-feed.

Garry
If you have the time, take a scrap piece of wood and feed it along the fence so that it cuts off the 1 mm then when the wood is just maybe 50mm past the cutter pull it away and turn off the router.

Take the wood and move it to the in-feed and slowly slide it by the bit until it is almost at the end of the cut. If you have a feeler gauge try sliding it between the out-feed and the stock (sheet of paper will do if you don't have a gauge). There should be no space between the stock and the out-feed while holding the stock against the in-feed side only. If this checks out try again but this time go 75 or 100 mm down the way.

If all that checks out You might look for something moving when you apply pressure, look for something flexing........ Maybe make your self some feather boards or if you have some use them, maybe you are just a little to strong for fence......

Ed
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