How to machine a series of 15/16” dado cuts?
mikewxyz
| Posted in General Discussion on
Hi Forum Members: I’m making several slat benches for my wife’s green house. The design requires a series of 15/16” dado cuts with a 15/16” spacing. My dado stack does not go that wide so I make two cuts to achieve the 15/16” cut dimension. I’m using an indexing block but still the accumulated error in the spacing dimension is causing the pieces to not be identical. Any suggestions?
Replies
I think Rockler has the perfect jig for you. I think it is around 35.00 ???
Thx galturner: Did you mean this? - Micro Jig MatchFit Dado Stop Pro Kit
My dado stack won't go that wide either. If it were me, unless I was making a lot of these, I would mark out all of the dados, and cut a 5/8 dado from each side. Eyeballs are great for short runs.
You could cut 15/16 blocks and just glue up your spacer parts using your slats to register them. Build that part instead of reducing a thick board with dados.
Rockler Cross lap jig. #56372 can use table saw or router table.
I agree with john_C2's suggestion of using the mark one mod zero human eyeball.
If machinist precision is needed, I would cut this as 5/8 dadoes using a 5/8 indexing block on a crosscut sled. Repeat the cuts with the indexing block shifted across to create the 15/16 dado you need. The only hard bit is moving the spacer block the exact right distance.
Alternatively, mark a series of lines 15/16 apart on a board and use these to index off the end of your stock by eye. This method will have no cumulative error.
I would not buy a jig for this as too easy to make.
I am a jig-making fool. However, I bought the Rockler jig for just such a project since the price and refinement were really reasonable.
Have you tried shimming out your dado stack? There is usually enough overlap in the chippers to get maybe another 1/4" out of it.
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