Looks like it could be done in two passes, on a router table, with a round over bit with a radius some what larger than the board thickness. 1/2 the bit's radius would be used on each pass.
Exactly. This is a machined piece; the curve is oh so perfect in your hands. It has to be done with a guide bearing and then hand smoothed ... or perhaps it's done with a jig so you can hold the curve as you go the length of the piece? I'm sure some smart person here will tell me what I should already know!The rest of the edge I do with a router. The hole is a bit more of a challenge, though.
I am pretty sure this is the ticket. The drilled hole rounding matches the rounding on the edge, and the gentle curve that extends over about 5/8" is oh so elegant in the hand. Can't wait to do this!The curve might be a table edge profile. Kind of like this one but there are quite a few variations. https://www.whitesiderouterbits.com/products/3294