Woodnknots
Member
I can figure that a closed end fountain pen is self explanatory, you don't need to worry about tension on the ink well. BUT... how do you solve the spring placement in the closed end rollerball? the only thing I can think of is using a smaller drill bit to finish off the drilling of the blank, and drilling it about 3/8" or so after the tube. Is this accurate, or is there some easy secret to this that I am unaware of?