Dimensioning has long been the curse of the woodworker, but with a Micro Fence Router Edge Guide and Plunge Base Combination accessory, you can make the job less painful. Find out how you can use this product to take the guesswork out of routing dadoes and grooves and other woodworking techniques that require you to be precise to the millimeter.


Category: All Videos, Free Videos, Joinery, Recently Added, Router, and Tips & Techniques.

Tags: Cutting a Dado with a Router, Micro Fence, and Routing Perfect Dadoes and Grooves.

  • Mike Litzkow

    I find that routing dados and grooves away from the edge of the board can be a bit confusing. I thought that the very first cut you made where you had the router fence on the right and pulled the router toward yourself is not the best direction to move the router. Since the router bit spins clockwise, and you were cutting with the part of the bit toward yourself, the reactive force on the router tends to push it to the right – toward the edge of the board. I think it would be better to push the router away from yourself so that the cutting happens on the far side of the bit. This would tend to push the router away from the edge of the board, thus assisting in keeping the fence tight against the edge and preventing the router from wandering.

    I thought that the other three cuts you made in the video were each correct. On the second initial cut, you pushed the router away, and both of the “enlarging” cuts were done so as to avoid starting an inadvertent “climb” cut. I did have to look and think carefully to see that, since on one of the enlarging cuts you pulled the router and on the other one you pushed it. However, one time when you adjusted the fence you turned the knob to the left and the other time you turned the adjuster to the right. This resulted in your enlarging the dado from opposite edges in the two demonstrations, and you did move the router in the “correct” direction both times.

    I recently heard a story from a very experienced router user who got confused about the geometry when enlarging a dado. (Luckily he didn’t get hurt, but was very surprised when the workpiece shot off his router table out of control.) I think most router users are aware of the importance of moving in the correct direction when working on the edges of boards, but those cuts in the middle of the board are harder to understand. I’m pretty sure you understand all of this, and I would suggest you might want to make a video on the subject to help your viewers stay safe. It would be great to show how things change once you turn the router upside down in a table too.

    • George Vondriska

      We’ve shot a video of making these cuts on the router table but I don’t think it’s out of the edit suite just yet.