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Forum topic by Lenny posted 08-05-2009 02:49 AM 2281 views 0 times favorited 25 replies Add to Favorites Watch
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Lenny

1272 posts in 2223 days


08-05-2009 02:49 AM

I just mounted my brand spanking new 8” Freud Superdado in the TS for the first time. I didn’t buy a dado insert for the TS. Instead, I am at the same time making zero clearance inserts for various widths. The inserts are made from baltic birch ply. I decided to do the 3/8” width so I placed the two outside blades and one 1/8” chipper in between onto the arbor. I installed the washer and arbor nut and lowered the blades, popped in the insert and clamped a 2×4 board across it to hold it down. Turned on the saw and started to raise the blades and smoke was everywhere. The smoke was from burning wood and it left burn marks on the blades and chippers. Even after the blade broke through it continued to smoke. I know because I did a second attempt thinking maybe raising the blade too slowly caused the burning. Did I do something wrong? While this is known to be a top notch dado set, not much by way of instruction/advice came with it. I would particularly like to hear from Superdado owners out there. Thanks.

-- On the eighth day God was back in His woodworking shop! Lenny, East Providence, RI


25 replies so far

View PurpLev's profile

PurpLev

8476 posts in 2344 days


#1 posted 08-05-2009 02:56 AM

did you install the blade in reverse?

-- ㊍ When in doubt - There is no doubt - Go the safer route.

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fredf

495 posts in 2406 days


#2 posted 08-05-2009 02:58 AM

That would be my guess too. All 3 blades need to point in the right direction!

-- Fred, Springfield, Ma

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Lenny

1272 posts in 2223 days


#3 posted 08-05-2009 03:00 AM

Hi Purplev. Interesting question. Both outside blades are marked “this side out”. I took that to mean that side goes away from the chippers in between. Does it instead mean that both should face “out”?

-- On the eighth day God was back in His woodworking shop! Lenny, East Providence, RI

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PurpLev

8476 posts in 2344 days


#4 posted 08-05-2009 03:02 AM

Lenny, if you put both blades with the “this side out” you can still put the left blade on the right side… and vice versa, meaning that they are in the wrong direction.

I always look at the teeth… teeth should face the front of the tablesaw on the top of the blade. make sure that also the chipper is facing in the same direction like fredf mentioned.

-- ㊍ When in doubt - There is no doubt - Go the safer route.

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fredf

495 posts in 2406 days


#5 posted 08-05-2009 03:03 AM

The teeth on the blade need to point in the direction of rotation with the out sides of the blade outside . . .
I (ahem) would never (ahem) admit to putting a blade on backwards. amazing the amount of smoke you get . . .

-- Fred, Springfield, Ma

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Lenny

1272 posts in 2223 days


#6 posted 08-05-2009 03:07 AM

I don’t think this set has a left and right blade. Rather, they are interchangable. However, I think (and hope) both of you have found the problem. Seems like “outside” means away from the inside for BOTH blades, and I know I didn’t even check the orientation of the chipper. Thanks loads. Ineresting that a guy from RI gets a response from two MA folks! lol

-- On the eighth day God was back in His woodworking shop! Lenny, East Providence, RI

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Lenny

1272 posts in 2223 days


#7 posted 08-05-2009 03:23 AM

I just brought the set in here to take a look and I do think that at least one of the outside blades was in the wrong orientation. Since I get up really early, it’s past my bedtime so I will try it tomorrow. Thanks again fredf and Purplev.

-- On the eighth day God was back in His woodworking shop! Lenny, East Providence, RI

View Eric in central Florida's profile

Eric in central Florida

3637 posts in 2271 days


#8 posted 08-05-2009 04:41 AM

Lenny,
I just bought the same exact set on sale at Woodcraft and intend to make my inserts on my day off.
Talk about good timing. Thanks.
You & fredf & purplev have me watching more carefully when I do it.

-- All glory comes from daring to begin.

View Don K.'s profile

Don K.

1075 posts in 2022 days


#9 posted 08-05-2009 05:39 AM

Lenny,
I have this same dado set…very good set. I bet you had a chipper in backwards.

-- Don S.E. OK

View kolwdwrkr's profile

kolwdwrkr

2821 posts in 2286 days


#10 posted 08-05-2009 08:32 AM

I’m impressed with the quick action of getting on lumberjocks and posting the question instead of just taking a few seconds and rotating the blades. LOL. Another reason to be thankfull for the site I guess. Be safe with those. I watched a guy install a brand new set on the saw and he didn’t line the tips up correctly. I believe he put a carbide to a carbide instead of making sure they were spaced between so the carbides didn’t touch anything. When he turned the saw on the blades loosened and spun recklessly breaking off several of the tips. They shot off in several directions. He’s lucky he wasn’t hurt.

-- ~ Inspiring those who inspire me ~

View Beginningwoodworker's profile

Beginningwoodworker

13345 posts in 2369 days


#11 posted 08-05-2009 01:50 PM

I’ve agree with the rest, check to see if the dado blade is install right.

-- CJIII Future cabinetmaker

View knotscott's profile

knotscott

5517 posts in 2071 days


#12 posted 08-05-2009 03:13 PM

Lenny – It’s important that the teeth face the proper direction….there’s a steel shoulder that physically supports each tooth. If installed backwards, you’re relying 100% on the binders to hold the carbide. You’ll also find that the teeth of the outside cutters on dado blades have a disproportionate “overhang” on the edges. The outside edge has a bit more overhang that the inside edge. All of the Freud sets are good quality, so you should be fine once installed properly unless there’s some defect.

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

View grizzman's profile

grizzman

7109 posts in 1999 days


#13 posted 08-05-2009 04:16 PM

when it comes to dado blades and shaper heads that go on a table saw…you gotta know what your doing…ive seen problems like this scar an older wood worker into not ever using the shaper head again…..and i must say me inheriting it was such a pleasure…...the more metal you have turning on these table saws…the more you have to be careful…...and like Kevin said…make sure the blade tips are offset with the one beside it…...get that down and have fun with your new blade…...

-- GRIZZMAN ...[''''']

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Lenny

1272 posts in 2223 days


#14 posted 08-05-2009 06:43 PM

Woodwrecker, yeah, that 15% off was a great deal, huh? Hi Don. It appears to have been at least a chipper. It may have been one of the blades too. Thanks. kolwdwrkr, it was getting late (for me) so I thought it best to leave the situation and try again the next day. Then I thought, why not throw it out to the LJ community. Voila, an immediate resolution to the problem. That situation you described is very scary. Glad to hear he wasn’t hurt. Hi Charles. Thanks for checking in on me. Knottscott, thanks for the information. BTW, I found the review I was looking for on the EB-3 and you were right…it wasn’t you! LOL. Grizzman, thank you. I guess I got off pretty easy regarding this error. I openly admit to not reading the “guide” carefully. I have re-read it and I am going to quote a bit of it: 1. Work Safely followed by valuable and appropriate safety information. 2. Use Both Outside Blades 3. Clean Well 4. Setup: “Use the chart on the next page to select the components needed for width of dado. After cleaning, place the first outside blade on the arbor, being sure rotation is correct. If chippers are being used, place them on next with the teeth of the chippers in the gullet of the outside blade. If more than one chipper is used, rotate every other chipper 45 degrees. Install other outside blade being sure that the teeth of the last chipper are in the gullet of the outside blade.” Had I read this carefully I would have picked up on the words being sure rotation is correct. Instead, I relied on my interpretation of what “outside” meant and never thought about rotation. While I take full responsibility for my error I do think the guide could be far clearer and, in fact, I think they should have a separate page labeled, “Installation”. They could highlight words in bold or red lettering. I plan to write to Freud to suggest this. Again, my error but they could do more to help customers avoid such a mistake with warnings, cautions, etc. The box or the front of the guide could say, “DO NOT OPERATE UNTIL ALL INSTALLATION STEPS HAVE BEEN LEARNED.” Thanks again everyone!

-- On the eighth day God was back in His woodworking shop! Lenny, East Providence, RI

View Chris Wright's profile

Chris Wright

536 posts in 2177 days


#15 posted 08-05-2009 09:16 PM

Since I run a woodshop that is used by people who aren’t as experienced with some of the tools, I took a Sharpie and wrote “this blade first” and “this blade last” on the outside blade of the dado set used here. Helps to eliminate the confusion.

-- "At its best, life is completely unpredictable." - Christopher Walken

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