Replies

1. 
   forestgirl | Jan 18, 2003 11:16pm | #1

   I had this problem the last time I made joints with my dado blade, contrary to earlier experience.  In that particular case, it turned out the blade wasn't exactly 90-degrees to the surface of the table.  I think I also reseated the blades on the arbor and made sure everything was clean before I put them on and tightened the arbor nut.

   What type of dado are you using?

   forestgirl -- you can take the girl out of the forest, but you can't take the forest out of the girl   ;-)

2. 
   PTurtiak | Jan 19, 2003 05:51am | #2

   Your blades might have been sharpened incorrectly, the arbor hole on the blades might be drilled or stamped too large, or the arbor on your saw was not milled properly.

   I use an eight inch Dimar dado set and the bottom of the dado groove is always flat.

1. 
   davearnone | Jan 19, 2003 07:46am | #3

   Thanks everyone.  I took it all apart and then put it back together. 

   works just fine now!

   dave

3. 
   jackiechan | Jan 19, 2003 07:57am | #4

   Dave,

   On a stacked dado set there are two blades that are specifically made to run on the outside (of the stack) only.  Plus, the outer blades should be clearly marked as to which side of the stack they should be on (left or right, depending on direction of spin, and tooth configuration.) 

   You may have the two outer blades mounted on the wrong side of the stack.  If so, switching them back should alleviate the problem.

   If you are using multiple shims, be sure to mount them as evenly spaced as possible between all of the blades.  If you stack all of the shims between two blades only, you may end up with a poorly supported blade that has the potential to flutter when up to speed.

   Inspect each tooth on all of the blades to be sure that none are damaged or miss-set.

   Please feel free to send me any additional questions that might arise.

   Dan Kornfeld, Owner/President - Odyssey Wood Design, Inc.

4. 
   DB | Jan 19, 2003 08:50am | #5

          Dave ,

      When your dado gets sharpened ask them to joint the blades , this will ensure them to all be the same diameter , this can contribute to an un-even bottom .I have had excellent results cutting half laps with a mortising jig and a 50 tooth combo blade , it is like a large rabbitt cut , two passes .

               good luck D.B.