New Table Saw Blade, Bad Cut? Help!

what type of wood are you using for the test cut’s

walnut

-- Aaron in TN -http://www.amwellsfurniture.com

Don’t be bashful….what blade is it?

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

And what tablesaw and fence are you useing ? Did you clean the arbor flange prior to installing the blade ?

hah! It’s from a company called Magnate in southern Cal. Very good stuff at a good price, so I’m not skeptical of the quality.

Woodchuck, its a Grizzly 1023SL with the Grizzly fence, but your raise a good point, I did not check the arbor flange.

-- Aaron in TN -http://www.amwellsfurniture.com

Even the best blade companies can produce some escaping defects. I have some Magnate router bits, but haven’t used their blades, so I really don’t know where they stand. If your previous saw blade did not have the issue you described prior to it’s demise, it’s very possible it’s caused by the new blade. Do you have another blade to try as a comparison?

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

Arbor runout?

-- Tempus fugit...better work wood!!!

If the arbor is clean check the blade run out, as scott says it could be a defective unit. Even the best mfg’s in the world get 1 defect per 1 million units.

Is the new blade Thin Kerf?
If yes, Manufacturers recommend the use of stiffeners for thin kerf blades to reduce deflection, that could be the problem.

-- Nature is my manifestation of God. I go to nature every day for inspiration in the day's work. I follow in building the principles which nature has used in its domain" Frank Lloyd Wright

If run-out isn’t the problem then I would take the blade to your sharpener and have him check the plate. Even new blades from reputable mfrs can be less than perfect. Exceptions to that are the high end blades and their inherent high prices. What you’re paying for is tighter tolerances of mfr and someone to hand check each and every blade for true before it leaves the plant. Short of that there are the better lines of blades from everyone else. I’m partial to Freud’s high end blades and I also have a few older blades made by DML that I purchased from my sharpener.

Good luck.

always,
J.C.

-- "Imagination is more important than knowledge" -- Albert Einstein

I’m going to borrow a dial indicator and base from may dad this weekend to check run out. What amount of run out is acceptable. Also, am I checking the vertical run out of the arbor shaft or horizontal run out of the flange or both?
I threw on an el-chipo DeWalt thin kerf blade and got similar results with it so I’m leaning towards the saw which is disappointing since its only a couple months old. I find it hard to believe that I damaged the arbor when I damage the first blade.

-- Aaron in TN -http://www.amwellsfurniture.com

Hi Aaron – Is the “noticeable cross hatching” that you mentioned just visible, or is it easy to feel with your thumb nail? I have yet to find a blade that leaves an edge no visible marks that I’d apply a finish to without some cleaning up first. Because of their flat raker tooth, the 50T ATB/R combo blades in general tend to leave slightly more swirl marks than something like a good 40T or 60T ATB grind, but they’re pretty small and you shouldn’t be able to feel them from a good quality blade. Visible marks that can’t be felt shouldn’t interfere with glue up.

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

Here are a couple pics. You can just barely feel it. You could probably glue up just fine, but I would clean up with a hand plane or run over the jointer for finished edges rather than just sanding.

http://picasaweb.google.com/lh/photo/dDMEczyfR9xRg8azSKYldQ?feat=directlink
http://picasaweb.google.com/lh/photo/unaKcRaNrYGk3DNnn3EQAg?feat=directlink

-- Aaron in TN -http://www.amwellsfurniture.com

How much is the acceptable run out on a TS blade?

-- "some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence Wake Up America!! Please read; http://www.commondreams.org/view/2009/01/26-0

Thats not bad, combo blades aren’t great at ripping. to get better you need a Glue Line Rip style blade.