This is something I have been needing for ages. A SIMPLE router version of a sawboard. Because most sawboard type of router dado jigs raise the router above the surface other precise measurements are needed. I have at least three versions that just do not work without having to "mentally visualize" and then make some measurement adjustments. I have never been completely satisfied with hand made or purchased router dado jigs.
I saw a simple one on Pintrest and will be making one for my PC router, probably today, as I need to make the ladder for my daughter's bunk bed. I will probably be making 4 of these because it is so simple, one for 1/4 inch, one for 3/8 inch, one for 1/2 and one for 3/4, and mark each one as to what size bit it is for. Much better than having to add "another" measuring step with each dado cut, which easily lead to mistakes. (Extra measurements have a habit of doing that.)
I usually mark the dado lines all the way across what ever I am cutting. With this board, simply align the right side of the board (in the linked pictures) with the line (make sure each jig is properly cut for the bit size), clamp and fold the spacing board back. Simple and depth is preset to the actual depth.
Clarification: I think I have been overthinking this. Doing the center line with a single bit sized to fit the dado might be the way to go. However, I have always had a problem with the router "jumping" at some point as it hit irregular grain, or I shifted my hands/arm to follow the line. I like the idea of the original line being the "cut line".
I need to play with this an tailor it to my work habits.
I saw a simple one on Pintrest and will be making one for my PC router, probably today, as I need to make the ladder for my daughter's bunk bed. I will probably be making 4 of these because it is so simple, one for 1/4 inch, one for 3/8 inch, one for 1/2 and one for 3/4, and mark each one as to what size bit it is for. Much better than having to add "another" measuring step with each dado cut, which easily lead to mistakes. (Extra measurements have a habit of doing that.)
I usually mark the dado lines all the way across what ever I am cutting. With this board, simply align the right side of the board (in the linked pictures) with the line (make sure each jig is properly cut for the bit size), clamp and fold the spacing board back. Simple and depth is preset to the actual depth.
Clarification: I think I have been overthinking this. Doing the center line with a single bit sized to fit the dado might be the way to go. However, I have always had a problem with the router "jumping" at some point as it hit irregular grain, or I shifted my hands/arm to follow the line. I like the idea of the original line being the "cut line".
I need to play with this an tailor it to my work habits.
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