Dentil moulding time, I thought I would make a jig for this. It didn't need to be fancy, just functional. if I was doing miles of the stuff, I think I would make a proper dedicated jig. On this one I just needed to have two 3x3mm to help with indexing. I didn't have the guard on for this throughout, so thought I would just super glue some guards in place.
Came out nice.
Here it is applied to where its going.
And that as they say is that, all finished except for polish.