TS blade alignment

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Forum topic by hightower posted 04-26-2011 01:12 AM 1323 views 0 times favorited 8 replies Add to Favorites Watch
View hightower's profile


14 posts in 2110 days

04-26-2011 01:12 AM

I have been working through what I believe is an alignment issue with my new table saw and am looking for ideas. I have calibrated the blade to .002 or so to the miter slot with the blade fully raised. I am doing this using the same tooth at the front and rotating it back. However when I lower the blade to a more normal cutting height, the alignment isn’t as close. When I run a piece through, either against the fence or with a miter gauge, it sounds like the piece it being contacted on both the front and back of the blade. I am using a brand new Forrest WWII thin kerf blade. I have gotten busy working on some other projects and now really want to narrow this problem down. I plan on trying another blade and also trying to verify arbor alignment. Any other ideas on what could cause this? Thanks for any help.

8 replies so far

View knotscott's profile


7145 posts in 2794 days

#1 posted 04-26-2011 03:15 AM

Over tightening the blade can warp it a bit…how snugged up is it? How are the cuts?

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

View crank49's profile


3979 posts in 2389 days

#2 posted 04-26-2011 05:51 AM

Did I miss it, or did you tell us what brand and model table saw you have ?

My saw, when it is fully raised, i.e. blade arbor jammed against the bottom of the table, will deflect to one side slightly. I learned to not adjust the alignment in this condition and have had no problems since. My saw is the Craftsman 21833; same saw as the Ridgid R4512.

-- Michael: Hillary has a long list of accomplishments, though most DAs would refer to them as felonies.

View DannyB's profile


46 posts in 2840 days

#3 posted 04-26-2011 06:06 AM

I have this exact problem with my Grizzly G0691. I would hit both leading and trailing edge of blade on left side. Even after I had calibrated the same way you did, to 0.001

I figured it was my blade, but it turns out it isn’t. I put a calibrated flat plate in there, measured front to back with it raised all the way, calibrated till this was 0.001, then lowered it halfway and measured again, and now it’s 0.006. It increases slowly as i lower it.

(I checked the plate itself and it’s flat/repeatable to 0.0005 over these areas, so …).

So it may be that in fact, the raising/lowering mechanism is twisting the blade. I went looking for why, and it was not immediately obvious (Grizz tech support had me check for a few things, none of which panned out.). I don’t feel like removing the top again and trying to watch things move five thousandths of an inch, so i just calibrated the blade to the height i use it at most of the time, and that’s that.

View bubinga's profile


861 posts in 2086 days

#4 posted 04-26-2011 08:13 AM

Just a thought here, are you absolutely sure, your blade is 90° to the table?
Check this out!!! Fixing the wobble in a table saw arbor

-- E J ------- Always Keep a Firm Grip on Your Tool

View Moops's profile


5 posts in 2041 days

#5 posted 04-26-2011 02:28 PM

I have the same saw, issue, and solution as crank49.

View hightower's profile


14 posts in 2110 days

#6 posted 04-26-2011 05:33 PM

I have the Grizzly G0715P hybrid. Assembly went pretty well, I did feel like I had to make a lot of adjustments. The process has been tedious because my work schedule hasn’t allowed me a whole lot of dedicated time to play with it yet. So I’ll spend some time working with it and then leave. The cuts I have made so far seem square, and the blade itself is leaving a great edge.

For some reason it didn’t occur to me to use the same tooth with the blade raised and lowered, I will definitely try that. I may be over tightening as well, that deserves a look too. Hopefully I can get some good time to play with it soon. I really appreciate all the advice/ideas.

View Bill White's profile

Bill White

4405 posts in 3379 days

#7 posted 04-26-2011 05:44 PM

Make sure you don’t have any trash on the blade washers.


View bubinga's profile


861 posts in 2086 days

#8 posted 04-26-2011 06:02 PM

GarageWoodworks You are right, and

I was going to put a link to you but couldnt remember where you were.
You have video right ?

-- E J ------- Always Keep a Firm Grip on Your Tool

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