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How's my riving knife clearance look? Wood pushes hard Delta 36-725T2

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Forum topic by deeve posted 01-19-2021 01:54 PM 362 views 0 times favorited 6 replies Add to Favorites Watch
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deeve

41 posts in 307 days


01-19-2021 01:54 PM

Swapped out the original blade with a Freud LU84R011 Combo blade for my Delta 35-725. I did some significant cutting yesterday for the first time with this blade and noticed when I get to the riving knife the wood gets a little harder to push. I did not notice that before, but I did note how much better the new blade cut. Perhaps the resistance was always there but the old blade did not cut as well as the new one? I felt like I was pushing harder than I should be. I have checked my fence and it seems aligned very well. The blade also is straight according to what I measured.

My riving knife has written on it to use blades with teeth “>2.5mm” and a plate ”<1>s.


-- Dave Hillsboro, Oregon


6 replies so far

View WhyMe's profile

WhyMe

1357 posts in 2570 days


#1 posted 01-19-2021 03:57 PM

Well.. in picture the riving knife seems skewed.

View deeve's profile

deeve

41 posts in 307 days


#2 posted 01-19-2021 04:11 PM

It does look that way by quite a bit. I’ll take another photo with better lighting. It did not appear to be when I took the photos

-- Dave Hillsboro, Oregon

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WhyMe

1357 posts in 2570 days


#3 posted 01-19-2021 04:13 PM

Yeah, it maybe a shadow I’m seeing. Any stress in the wood that could be closing the cut?

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deeve

41 posts in 307 days


#4 posted 01-19-2021 04:55 PM

The wood was higher grade 2×4 from Home Depot but they were still 2×4’s from HD, so you know how that goes. No major warping or twisting though.

Here are some photos I took just now. It may be skewed a hair to the outside. The last photo makes it look worse than it is. The ones taken from the left side show it better. Would that be enough to cause any binding? It would be skewed to the outside of the fence and the off cut piece

-- Dave Hillsboro, Oregon

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mel52

1977 posts in 1274 days


#5 posted 01-20-2021 02:15 AM

Is your riving knife a lot thicker than your blade. it may be forcing your wood apart at the cut and then forcing it tighter to your fence. Just a thought. Mel

-- MEL, Kansas

View deeve's profile

deeve

41 posts in 307 days


#6 posted 01-20-2021 03:29 AM

That was what I initially thought. The teeth are quite a bit wider and the blade body is about .2mm thinner.

-- Dave Hillsboro, Oregon

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