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Forum topic by bbqking posted 01-05-2009 10:29 PM 703 views 0 times favorited 7 replies Add to Favorites Watch
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bbqking

328 posts in 2374 days


01-05-2009 10:29 PM

Topic tags/keywords: tablesaw question

Recently I noticed that when ripping a board on my TS (Ridgid TS3650), the outfeed end draws away from the fence. The piece is still to size, straight, and square but it bothers me that this happens. I actually can’t tell you if this just started or has been going on for awhile. I just noticed it the other day. Like I said, the ripped pieces turn out just fine. Any help out there? bbqKing.

-- bbqKing, Lawrenceville


7 replies so far

View CharlieM1958's profile

CharlieM1958

15695 posts in 2869 days


#1 posted 01-05-2009 10:43 PM

I don’t know if it’s true or not, but I read a posting a while back that said fences are supposed to slant very slightly away from the blade near the back of the saw to help avoid pinching the blade.

-- Charlie M. "Woodworking - patience = firewood"

View Woodchuck1957's profile

Woodchuck1957

944 posts in 2414 days


#2 posted 01-05-2009 10:56 PM

I think these things are hard to diagnose without physically being there and seeing whats going on, you don’t say how far from the fence, and there are several reasons that it could doing what you describe, The fence out of alignment, the arbor out of alignment or the board has a very slight curve to it, or your being too picky. Charlie I think is correct also.

View Scott Bryan's profile

Scott Bryan

27251 posts in 2472 days


#3 posted 01-05-2009 11:11 PM

Charlie is correct in that one school of thought advocates setting the rear of the fence away from the blade but this should be no more 0.003” which I know I would have trouble seeing. When I set mine I use a dial indicator.

The only thing I could think of is that your rip fence is not aligned to the sawblade or it is bowed.

Any chance you could post a picture of this the next time you are ripping a board?

-- Challenges are what make life interesting; overcoming them is what makes life meaningful- Joshua Marine

View pitchnsplinters's profile

pitchnsplinters

262 posts in 2088 days


#4 posted 01-06-2009 12:38 AM

There was a nice article in American Woodworker magazine (October 2006) on adjusting a tablesaw. The best such article I have read.

-- Just 'cause a cat has kittens in the oven, it don't make 'em biscuits.

View Steven Naslund's profile

Steven Naslund

12 posts in 2152 days


#5 posted 01-06-2009 12:42 AM

I think you could have one of two issues. Your wood is reacting and the way to tell that would be to make a partial rip, stop the saw, withdraw the board and see if the kerf is closing up. What I think is that you most likely have a misaligned fence. I don’t buy the advice about having the back of the fence kicked out from the blade. All you would be doing is rubbing your board on the other side of the back of the blade. My advice would be to get it as close to parallel as you can and then use a splitter. That should prevent burning and kickback.

-- Steven Naslund, Chicago IL

View Karson's profile

Karson

34874 posts in 3051 days


#6 posted 01-06-2009 01:41 AM

I would say it’s reaction wood or case hardening of wood that is releaving some internal pressures.

If I notice that I then usually cut the piece big, let it react for a few days and then trim to the correct size.

-- I've been blessed with a father who liked to tinker in wood, and a wife who lets me tinker in wood. Southern Delaware karson_morrison@bigfoot.com †

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pitchnsplinters

262 posts in 2088 days


#7 posted 01-06-2009 05:27 AM

Steve Naslund has a good plan. I would go one step further and cut a piece of engineered lumber (i.e. plywood) which is dimensionally stable. If the plywood walks away from the fence then you definitely have something misaligned.

I too do not believe it necessary to purposely misalign the fence by .003”. Small temperature changes in your shop can cause parts on your saw to move by thousandths of an inch. Unless you are in a climate controlled shop, shoot for parallel.

-- Just 'cause a cat has kittens in the oven, it don't make 'em biscuits.

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