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Squaring the blade to the Miter Gage on a Cabinet saw

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Forum topic by Chipy posted 09-07-2011 02:15 PM 1007 views 0 times favorited 5 replies Add to Favorites Watch
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Chipy

374 posts in 2056 days


09-07-2011 02:15 PM

Topic tags/keywords: resource tip question trick

I am looking for any tips or techniques to squaring the blade to the miter Gage slot on my Cabinet saw.I have a Grizzly go 691.The instruction are a little vague and give no clear procedure for squaring the blade to the miter slot.My saw is currently out of square from front to back about 10 thousands of an inch.The way that came to my mind for correcting this run-out was to loosen 3 of the 4 bolts that attach the table to the cabinet.I would pivot the table on the last tighten bolt.I would use a 2×4 or my dead blow hammer to “inch” the table into proper alignment.Out of all the saws that I have worked on cabinet style or contractor I have never had to adjust the table or trunnion, my fear is that I would knock my saw so far out of alignment that it would be hard to correct. Maybe I am just over thinking this but any input would be appreciated thanks Scott


5 replies so far

View Sawkerf's profile

Sawkerf

1730 posts in 2531 days


#1 posted 09-07-2011 04:15 PM

I don’t have a Grizzly, but your plan sounds right for that type of saw. If it were me, I would loosen all four bolts but leave one a bit snug. I would also use a straightedgs against a fully raised blade and take my measurements at each end of the miter slot. Doing that amplifies any discrepancies by showing them over a greater distance.

When you have things like you want them, tighten your bolts in a cross pattern a little at a time and check your measurements as you go.

-- Adversity doesn't build character...................it reveals it.

View Cosmicsniper's profile

Cosmicsniper

2202 posts in 2621 days


#2 posted 09-07-2011 04:16 PM

You’re doing it right, Scott. I wouldn’t worry about over-correcting. Getting to 10 thousandths is easy…getting to 1 thousandths is the hard part.

For me, I just hit on it and measure it…over and over again until I get it right. If I over-correct, I beat on it the other direction, back and forth until I’m g2g. If I think about it too much and try to control things too much, I usually just screw things up. In other words, I normally get it right by ping-ponging it and relying on pure chance…BION, it normally takes all of a couple of minutes that way.

-- jay, www.allaboutastro.com

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Cosmicsniper

2202 posts in 2621 days


#3 posted 09-07-2011 04:20 PM

@Sawkerf – I’d be carefully with that method. By extending the blade with a straight-edge you are also magnifying any potental arbor run-out. I think the ol’ “choose a tooth” method is better. I measure to the gullet below the chosen tooth.

-- jay, www.allaboutastro.com

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knotscott

7211 posts in 2839 days


#4 posted 09-07-2011 06:58 PM

Your method looks good, but as Sawkerf mentioned, I’d still loosen the 4th bolt slightly. Once the alignment is good, snug the bolts back up a little and check that the alignment hasn’t moved before giving them the final tightening. It’s not so different than how you might snug up lug nuts on a tire.

It’s good to get it as close as you can, but there are some fine adjustments you can do to the fence to help get things perfect.

-- Happiness is like wetting your pants...everyone can see it, but only you can feel the warmth....

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Chipy

374 posts in 2056 days


#5 posted 09-07-2011 07:34 PM

Yeah…Made too much of a big deal out of it.I did loosen all 4 bolts and got to within .0025 thousands from front to back on both miter slots.I bought one of those 10 inch setup/sanding disc from Freud and a dial indicator and set up bar from INLINE INDUSTRIES made the job easy and accurate.I allays wanted to learn to tune up a table saw but never got the opportunity, we had one guy in our shop that did all the tune ups and the rest of us were not allowed to touch a thing! If you got within 2 feet of the Delta or General with a wrench in your hand he would come running over and say “what the #$!! are ya doing to my saw”.He told me later that he would show me what to do but he didn’t want any of the other monkeys touching his saws.No one rally ever bothered arguing with him because when you set that fence to 5 inches it cut 5 inches. Sometimes it’s better having one person set the standards that way everything stays the same providing that person knows what there doing.Thanks for your input guys!!!! Scott.

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