I finished making the vertical cuts for the dovetails in the sole plate. I clamped a piece of scrap wood cut at 75 degrees as a guide for my hacksaw blade. The guide block began to wear and lose accuracy after a couple cuts. At that point, I made enough guide blocks to use a fresh one for every cut.
Before removing the waste form the dovetails in the sole plate, I decided to open the mouth. It was easier to clamp the sole plate in the drill press vise with the sides still intact. I used a small diameter drill bit to perforate the perimeter of the mouth opening. I then drilled as much of the waste as possible without letting the bit wander. I tried to knock the remainder loose with a cold chisel, but it didn’t want to pop free. Now I’m left with the task of filing out the remainder of the waste.
After I clean out the mouth, I will then remove the waste from the tails in the sole plate.
-- Tony - http://ravensedgetoolworks.com