I'm new to woodworking so please pardon any apparent ignorance.
If the width of a Dado Blade is the same for any given size, what is the determining factor in using a 6", 7", or 8"?
Originally posted by daveferg:
Grafox----don't appologize---you've asked good questions. First, the short answer is I believe Ridgid has now come out with a dado insert for the new saw, so check in the stores or where you order accessories at HD or on the Ridgid site/phone number.
As to a zero clearance insert----you are right----while in theory, they reduce tear-out, you would need one for each width and height of the dado set. With the lack of standard widths of plywood and even solid wood, personally, I think you'd go crazy seeing that you have a different insert for each width.
I would suggest you wait to get the dado insert before buying a stacked dado set. The old insert used to be made to handle a 7" dado set (odd-ball size, that Ridgid/Sears used to carry). Most other dado sets come in 6" or 8" diameters. If you ever ran the 8" at full height, you might have the blades hit the insert.
Personally, I prefer using the 6" set as it weighs a lot less than the 8" sets and in my opinion, would put a lot less strain on arbor bearings.
Finally, completely read the instructions a couple of times, so you understand the direction of mounting, how to stagger the chippers and insert shims. Remember, a dado hogs out a lot of material so feed it slowly and use pleanty of downward pressure and NEVER put your hand on top of the wood, as it travels over the blades.
Hope this answers your questions.