Hi Ron,
You're exactly right. The domino is perfectly stable in both orientations with the domino plate (gadget....are we still using that name?) and the domino fence. I used the plate to cut both face mortises and those on the edge of the mating board, holding the domino upside down for the latter cuts. I found however that the domino crept a little on the upside down cuts, probably because I was concentrating more on locating the cut rather than ensuring I had a firm grip on the tool while cutting. It occurred to me that a possible improvement on your domino plate might be to machine a texture on both surfaces to avoid slippage (Leigh Dovetail jigs included that feature on its recent offerings to prevent narrow stock from moving when being routed). I don't know if that is feasible or necessary. Just a thought.
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You're exactly right. The domino is perfectly stable in both orientations with the domino plate (gadget....are we still using that name?) and the domino fence. I used the plate to cut both face mortises and those on the edge of the mating board, holding the domino upside down for the latter cuts. I found however that the domino crept a little on the upside down cuts, probably because I was concentrating more on locating the cut rather than ensuring I had a firm grip on the tool while cutting. It occurred to me that a possible improvement on your domino plate might be to machine a texture on both surfaces to avoid slippage (Leigh Dovetail jigs included that feature on its recent offerings to prevent narrow stock from moving when being routed). I don't know if that is feasible or necessary. Just a thought.
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