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A NEW WAY TO CHECK ALIGNMENT OF TABLESAW FENCE (update 07/27/10)

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Forum topic by Dick, & Barb Cain posted 07-24-2010 12:29 PM 1775 views 4 times favorited 19 replies Add to Favorites Watch
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Dick, & Barb Cain

8693 posts in 3043 days


07-24-2010 12:29 PM

Topic tags/keywords: video tablesaw fence adjusting safety dick

This is from American Woodworker.

Update:

I’d like to warn people to take the advise to some of the comments like:

Tony says, “Make sure your miter slot runs parallel to the saw blade.”
If not, adjust accordingly.

Rick says, “Dick: You said it twice and so did Karson I agree. I’ve owned three table saws, replaced the Fence on two of them, made every other possibble adjustment and the Fence ALWAYS needed adjustment when starting a new cut.

Maybe just a hair, but that’s enough. The Video might be okay for Checking Initial Alignment but I noticed even he had to “Thump” the other side of the fence to get it to line up, and “Good to go.” He wasn’t even intending to make a cut, I don’t think?

When I’ve got my blade set for the cut I ALWAYS make a final quick check using a Tape Measure (end to the fence) and measure to the Tip of the “inward pointing?” tooth (Raker?) at the Front and Rear of the blade. Very Rarely do I not have to “Whack” the Back Side of the Fence to move it perhaps 1/16” of an inch.”

REMEMBER! >>>>>>ALWAYS PLAY IT SAFE<<<<<<<

_

-- -** You are never to old to set another goal or to dream a new dream ****************** Dick, & Barb Cain, Hibbing, MN. http://www.woodcarvingillustrated.com/gallery/member.php?uid=3627&protype=1


19 replies so far

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Tony

978 posts in 2774 days


#1 posted 07-24-2010 12:49 PM

Guys ‘N’ Gals please note you cannot undertake this test until after you set the blade alignment with the mitre tracks.

Nice simple method for checking the fence accuracy – he could have mentioned using “feeler” gauges to measure the discrepancy, if any.

If the fence is not parallel to the blade, you must adjust the fence system, not the saw table/top.

-- Tony - All things are possible, just some things are more difficult than others! - SKYPE: Heron2005 (http://www.poydatjatuolit.fi)

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Dick, & Barb Cain

8693 posts in 3043 days


#2 posted 07-24-2010 12:57 PM

A good point Tony.

-- -** You are never to old to set another goal or to dream a new dream ****************** Dick, & Barb Cain, Hibbing, MN. http://www.woodcarvingillustrated.com/gallery/member.php?uid=3627&protype=1

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JimDaddyO

288 posts in 1823 days


#3 posted 07-24-2010 01:44 PM

I wonder what the manufacturing tolerance is on the thickness of the magnets? It could make a difference.

-- I still have all my fingers

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Tony

978 posts in 2774 days


#4 posted 07-24-2010 01:54 PM

Just measure the magnets. The discrepancy between the two fixing points if any, is more likely to be the addition of tape.

Dont forget using this method – the discrepancy in the thickness of the Magnets, tape and steel ruler used. if only 0.001” each, then that could mean a total of 0.003” compared to the the other fixing point + add any dust or residue on the components that could mean 0.005”, which starts to take you outside the acceptable tolerances.

As an absolute, I must have it perfect check +/- 0.0001”, then this method is not that good, but for a quick check and alignment it is quite good and fast

-- Tony - All things are possible, just some things are more difficult than others! - SKYPE: Heron2005 (http://www.poydatjatuolit.fi)

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Dick, & Barb Cain

8693 posts in 3043 days


#5 posted 07-24-2010 02:45 PM

Thinking this over, I’ve decided that I still wouldn’t completely trust the setting.

After moving the fence to your desired cutting width, there’s a chance that your fence won’t be properly aligned.

Most fences have a chance to misalign every time you move them.

-- -** You are never to old to set another goal or to dream a new dream ****************** Dick, & Barb Cain, Hibbing, MN. http://www.woodcarvingillustrated.com/gallery/member.php?uid=3627&protype=1

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Karson

34911 posts in 3144 days


#6 posted 07-24-2010 02:52 PM

The fence on the table saw at our toy workshop always has a slight mis alignment. There are two locking handles. One for the front and one for the tail.

-- 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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patron

13156 posts in 2085 days


#7 posted 07-24-2010 02:57 PM

this is as good as i’ve seen ,
for quick checks .

so long as my saw doesn’t have kick-back or burning ,
i am happy .

thanks dick for this tip .

-- david - only thru kindness can this world be whole . If we don't succeed we run the risk of failure. Dan Quayle

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mikethetermite

467 posts in 2010 days


#8 posted 07-24-2010 05:05 PM

Thanks for sharing. That’s a tip we all can use.

-- Mike The Termite ~~~~~ Working safely may get old, but so do those who practice it.

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schloemoe

691 posts in 1682 days


#9 posted 07-24-2010 05:14 PM

Beats the heck out of a measuring tape how accurate is that? Thanks for sharing…................Schloemoe

-- schloemoe, Oregon , http://www. woodrehab.blogspot.com

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Gregn

1642 posts in 1727 days


#10 posted 07-24-2010 06:47 PM

Once my blade is set to the miter slot, I just use the miter slot to align my fence. Been working good for me all these years.

-- I don't make mistakes, I have great learning lessons, Greg

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reggiek

2240 posts in 2014 days


#11 posted 07-24-2010 06:56 PM

Thanks for sharing this tip….it may not be precise but it is another good way to test your alignment. Thanks Tony for the input also…most beginning WW and even experienced ones need to pay attention to alignment in all power tools….otherwise the project will be ill fitting and require much more adjusting. I just found a crack in my fence on my Bosch Sliding Mitre Saw….unfortunately, it is off warranty…but thankfully the cost was minimal to fix….here is a good place for parts if anyone needs – Tool replacement parts it is a company called ereplacementparts.com. They have diagrams of the tools so you can find the exact part.

-- Woodworking.....My small slice of heaven!

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Grumpy

19693 posts in 2595 days


#12 posted 07-25-2010 08:19 AM

Good one Dick, I like it.

-- Grumpy - "Always look on the bright side of life"- Monty Python

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b2rtch

4351 posts in 1792 days


#13 posted 07-25-2010 12:26 PM

Why is my fence moving all over the place when I tighten it?
I already try to adjust the “small set screws” so that it would not move so much when I “tight” it but with not much success.
The fence I use is the original fence on my Ridgid R4511.
I know this is not the best fence around but it is good enough for me and for now.
Thank you.

-- Bert

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Dick, & Barb Cain

8693 posts in 3043 days


#14 posted 07-25-2010 02:27 PM

b2rtch says, “Why is my fence moving all over the place when I tighten it?”

That’s why I’ll never trust my fence to be parallel with the blade even after this magnetic check.

I don’t think I’d trust any fence, no matter what it costs.

I’d rather be safe than sorry.

-- -** You are never to old to set another goal or to dream a new dream ****************** Dick, & Barb Cain, Hibbing, MN. http://www.woodcarvingillustrated.com/gallery/member.php?uid=3627&protype=1

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tdv

1121 posts in 1814 days


#15 posted 07-26-2010 11:51 AM

Thanks for the tip Dick now all I need is a good fence.
Trevor

-- God created wood that we may create. Trevor East Yorkshire UK

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