A question of tolerance

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Forum topic by Sean posted 01-12-2010 03:12 AM 1048 views 0 times favorited 7 replies Add to Favorites Watch
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156 posts in 3638 days

01-12-2010 03:12 AM

I’ve had to move my tablesaw, i took the opportunity to break it down and clean it up, replace the belts. now I’m trying to set it back up and im having difficulty. its a 3hp grizzly 10in TS. I’m trying to get the alignment right between the blade and the miter slots….right now its .004 away at the far end of the table, meaning it would have .004 of pinch between the fence and the blade as the stock leaves the blade. I think i can do better than that, and at any rate i’d rather have it .004 the other direction if anything. My question is, how much is good enough? Does everyone else get the blade dead on parallel to the slot, or is .001-2 an acceptable tolerance for deviation?

-- "Democracy is by far the worst system of government. Except all the others that have been tried." ~ Winston Churchill

7 replies so far

View MRBILL's profile


16 posts in 3960 days

#1 posted 01-12-2010 03:34 AM

I can’t measure that close of a tollerance so I don’t worry about getting it that close. You are doing woodworking, right? I don’t think you have to worry about .004, I would not.

-- Mr. Bill in Mount Juliet, TN

View Sean's profile


156 posts in 3638 days

#2 posted 01-12-2010 04:04 AM

Im using a dial indicator, i guess i dont really have to get it so tight, but i figure since this is the kind of thing i wont do often, i should do it as best as i can. Especially since i like to use the ts for crosscutting and miter cuts with a guage.

-- "Democracy is by far the worst system of government. Except all the others that have been tried." ~ Winston Churchill

View mckenziedrums's profile


118 posts in 3080 days

#3 posted 01-12-2010 04:16 AM

It’s accurate enough when you feel good about it… If you’re going to fret every time you’re making a tight cut… take the time and get it to the point where you’re happy. In the end it’s about the size of cuts you’re making I’d say. Large cuts have more tolerance… when you’re building small boxes, etc you don’t have as much leeway.

View CharlieM1958's profile


16275 posts in 4241 days

#4 posted 01-12-2010 04:35 AM

I’ve heard that .003 or less is acceptable. Mine is at .001, and I’m not about to try to get any closer. At .004 I’d probably keep trying.

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

View Karson's profile


35125 posts in 4424 days

#5 posted 01-12-2010 04:39 AM

I think a light tap with a woo mallet could cause one corner to move a little. I’d have the bolts snugged up a tad.

Good luck

-- I've been blessed with a father who liked to tinker in wood, and a wife who lets me tinker in wood. Southern Delaware soon moving to Virginia †

View coloradoclimber's profile


548 posts in 4091 days

#6 posted 01-12-2010 06:06 AM

Like you I figure it’s only something I do once every blue moon so I’d likely keep going. I usually try to get 2 mils or less, or if I’m tired of messing I might go 3.

View Clarence's profile


125 posts in 3129 days

#7 posted 01-12-2010 06:54 PM

George V. says the acceptable tolerance is .003, the thickness of a sheet of notebook paper.

-- Getting old is a good thing, but being old kinda stinks.

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