Custom scotia: router or tablesaw?

[blueman]

I need to make a piece of custom scotia molding for under the treads of our staircase.

I need to match existing trim that is 100+ years old and I have not been able to find the size in the store.

The dimensions are: 3/4 x 1/2" The lip dimensions are 1/3" on the 1/2" side and 1/8" on the 3/4" side (these dimensions are different from what I have seen on modern Scotias)

- What is the best way to fabricate and replicate the molding myself?

- If I use a router, what type of bit should I use? cove?? If so, what size.

- Other people have suggested using a tablesaw with the wood at angle to the blade. If so, how do you decide what angle to use?

Finally what are the advantages and disadvantages of each approach?

[Edwin Pawlowski]

Forget the tablesaw. That can be used for certain cove moldings, but you have limited radius to work with.

Router in a table or a shaper is the way to go. I would not try a hand held for a molding I don't know exactly what your piece looks like so I can only suggest looking at different profiles, maybe even using two if it is not a constant radius. Go to

for starters. or here

[BobS]

This is not the answer but you may find it of some value.

Valley has a nice selection of core box bits:

S.