Page 1 of 3 123 LastLast
Results 1 to 10 of 23

Thread: Stack Dado Question?

  1. #1
    Join Date
    Dec 2006
    Location
    Independence, Kentucky
    Posts
    1,355

    Stack Dado Question?

    I am going to geta 8" stack Dado set and I looked at the Grizzly, and I am skeptical since it is so much cheaper than other brands such as Freud or Forrest. Does anyone have their set? and does it cut flat bottom dado's, and what about tear out on sheet goods? I would like to hear what others have experienced with them. This is not something that I will use a lot, but want something that will do a good job. I don't want to buy twice. I understand that you get what you pay for.
    Thanks,
    Chuck

  2. #2
    Join Date
    Nov 2006
    Location
    Delton, Michigan
    Posts
    17,477
    charles the first questio you need to answer is,,can your saw accept a stacked dado blade from those you mentioned. i wasnt as informed early on and knew i wanted a knew dadao bought the frued and it wouldnt work on my old craftsman saw so i now had a dado and no saw that would run it ..so look at your saw the arbor needs to set up so it wil work.. then as for who has the best i still have the frued and love it but they are others out there that are just as good.. not gonna compare havnt only had the frued ..others willchim in and tell you there thoughts another thing to look at is a 6" dado head runs better on smaller HP saws and you get a smaller shelf to clean out if you run a stopped dadao on a project!
    If in Doubt, Build it Stout!
    One hand washes the other!
    Don't put off today till tomorrow!

  3. #3
    Join Date
    Apr 2007
    Location
    No, not all of SoCal is Los Angeles!
    Posts
    9,077
    I have owned others. I currently run a Frued SD508 on a 1-3/4HP hybrid and am very happy with the performance. Larry is on target about checking what your saw will run. I wanted the SD608 but did not have the arbor for it. In practice I do not miss the dial adjustment at all for my work.
    Any sufficiently advanced technology is indistinguishable from magic.
    - Arthur C. Clarke

  4. #4
    Join Date
    Dec 2006
    Location
    Independence, Kentucky
    Posts
    1,355
    Thanks Larry and Glenn, good point about checking the arbor, I will do that, and I appreciate the info. Now I have homework to do it seems. Thanks guys
    Chuck

  5. #5
    Join Date
    Nov 2006
    Location
    Rochester
    Posts
    846
    Hi Chuck - Most contractor saws and hybrids will just barely accept a full stack, and typically need to leave off the arbor washer to do it...which is a common practice recommended by many manufacturers. Most cabinet saws have slightly longer arbors and will accept the stack with the washer.

    I have not tried the Grizzly dado, but did read some solid positive comments from a forum regular who owned it....can't recall who or what forum! The design is similar to the Systimatic 42T/6T Superfine dado set that I had....that was an excellent set, but with a retail of $300 it sure the heck better be! Oshlun has a similar set too that's nearly an identical design to the Systimatic that's getting good remarks as a very good dado and excellent value. (I believe Holbren offers 10% to members...?)

    If you're uncertain about trying the Griz or Oshlun, Grizzly has the DW7670/H7200 set on sale for $89.95, which is more money but is a really nice set with a great case and very nice shim stock, and it's more proven.

    As far as flat bottoms go....truly flat bottoms will only come from an flat top grind with excellent precision....I'm not aware of any sets that use all FTG teeth on the cutters (doesn't mean they don't exist), except for the box joint blades, which are limited to 1/4" and 3/8". Most dado sets use an ATB because it has lower tearout, but leave minor "bat ears" at the bottom of the kerf. Some alternate an FTG raker to minimize them. Tearout on the backside is a partly a function of the grind, the hook angle, number of teeth, feedrate, the material, etc., etc....using a backerboard can minimize that a lot. Oversizing the piece, then ripping to final width after the dado cut will remove the tearout (as long as you cut off the exit side! ) If you want "good" to "very good" performance, a $50-$100 set will probably do the trick. If you want top shelf performance from a dado set, you're probably gonna need to spend $150-$200 (Infinity, SD508, Ridge Carbide, Forrest). A router bit is one method of getting a truly flat bottom dado cheaply, but the tearout is usually worse than with a dado set.
    Attached Thumbnails Attached Thumbnails h7777.jpg   21975-02-500.jpg  
    Last edited by scott spencer; 12-18-2008 at 12:24 PM.
    Got Wood?

  6. #6
    Join Date
    Sep 2007
    Location
    Central (upstate) NY
    Posts
    1,457
    I use my 8" Amana stacked dado set on my Delta 12" RAS. I don't have a TS in my shop.

    My set has ATB outer blades, but Amana makes a different set with either TCG or FTG (I think TCG) for a perfectly flat dado. I bought this set when I was still very, very new to woodworking - if I was buying a set now I would try not to get an ATB outer set. On the other hand, maybe the ATB outers are useful for crossgrain material removal.

    What I have read about stacked dado sets is that X - 4" (or smaller) is the size recommended for normal use and X - 2" when absolutely necessary. (X is the maximum blade size for the saw).

    I'm not an expert by any stretch - maybe someone else will chime in with more details on the recommended size thing.

  7. #7
    Join Date
    Oct 2006
    Location
    The Heart of Dixie
    Posts
    4,268
    Never used a Grizzly but I bet I know what will happen. It will cut just fine but your dado will not have truly flat bottom. It will have ridges because the arbor holes are not held to a tight tolerance and/or the blades tolerance concentrically are not held tight enough. Meaning one blade is going to be higher than the other.

    I have a cheap set and it works, but if your going to do good work, your going to want a better set. So I say just cry once and buy a good dado stack. It's on my list too.
    God grant me the senility to forget the people I never liked anyway,
    the good fortune to run into the ones I do,
    and the eyesight to tell the difference.


    Kudzu Craft Lightweight Skin on frame Kayaks.
    Custom built boats and Kits

  8. #8
    Join Date
    Sep 2007
    Location
    Central (upstate) NY
    Posts
    1,457
    Quote Originally Posted by Jeff Horton View Post
    Never used a Grizzly but I bet I know what will happen. It will cut just fine but your dado will not have truly flat bottom. It will have ridges because the arbor holes are not held to a tight tolerance and/or the blades tolerance concentrically are not held tight enough. Meaning one blade is going to be higher than the other.

    I have a cheap set and it works, but if your going to do good work, your going to want a better set. So I say just cry once and buy a good dado stack. It's on my list too.
    If what Jeff describes is what you were asking about, my Amana set is flat. The only thing not flat is the little bite at the sides from the ATB outer blades.

  9. #9
    Join Date
    Oct 2006
    Location
    ABQ NM
    Posts
    30,020
    Quote Originally Posted by Jeff Horton View Post
    Never used a Grizzly but I bet I know what will happen. It will cut just fine but your dado will not have truly flat bottom. It will have ridges because the arbor holes are not held to a tight tolerance and/or the blades tolerance concentrically are not held tight enough. Meaning one blade is going to be higher than the other.

    I have a cheap set and it works, but if your going to do good work, your going to want a better set. So I say just cry once and buy a good dado stack. It's on my list too.
    I have an inexpensive set (name escapes me at the moment...begins with an "A", but it's not Amana). I've had no complaints about non-flat bottoms when using it. Plus, on anything I've made with dado cuts, the bottoms of the cuts are hidden anyway, by the material that is inserted into the dado.
    When the going gets weird, the weird turn pro. - Hunter S. Thompson
    When the weird get going, they start their own forum. - Vaughn McMillan

    workingwoods.com

  10. #10
    Join Date
    Nov 2006
    Location
    Odessa, Tx
    Posts
    1,813
    Quote Originally Posted by Vaughn McMillan View Post
    I have an inexpensive set (name escapes me at the moment...begins with an "A", but it's not Amana). I've had no complaints about non-flat bottoms when using it. Plus, on anything I've made with dado cuts, the bottoms of the cuts are hidden anyway, by the material that is inserted into the dado.
    I'm assuming that the reason he wants a perfectly flat bottom Vaughn, is because he may be making things that have the dado joint's end showing, such as cabinet dividers where no Face Frame covers the joint leaving it exposed, and with the "Wing" effect from the ATB outer blades, it doesn't look good.
    (Just my perception).

Similar Threads

  1. Peachtree Half Price on 8" Stack Dado Set
    By Dan Mooney in forum Hot Deals
    Replies: 0
    Last Post: 01-14-2012, 03:45 PM
  2. Rockler has a 6" Dado Stack
    By Ned Bulken in forum Hot Deals
    Replies: 0
    Last Post: 04-15-2009, 07:43 PM
  3. Wow results with my old dado stack . . .
    By Jerry Palmer in forum General Woodworking Q&A
    Replies: 3
    Last Post: 06-25-2008, 09:42 AM
  4. Stack Dado setup gage
    By Jeff Horton in forum Jigs and Fixtures
    Replies: 11
    Last Post: 02-11-2008, 09:42 PM
  5. Freud 508 Dado Stack for about $135....
    By Mark Rios in forum Hot Deals
    Replies: 0
    Last Post: 02-20-2007, 08:58 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •