the pen owner Kang (from S.Korea), sent me this pen.
as matter of fact, this is the second time i received it.
first time was a year ago, and i was not confident enough to retip the nib.
however, a lot has happened since then, and I have obtained higher skills regarding nib fabrication.
after a year or so, i had much more proficiency in following categories:
-nib smoothing / polishing
therefore, i did not reject the pen this time, and agreed to tackle the retipping of different brand pen.
the biggest difficulty with retipping a nib is : every brand has different nib designs.
welding and slitting requires high precision, especially slitting, and it is very difficult to achieve high precision across all brand designs.
the nib i received had no tip on it and the owner used it with gold point, which wore down pretty fast.
this is the nib after the welding process:
after welding, ideally one must slit the point, in line with the original slit.
-ideal precision requirement error: 0.02mm
-minimum required slit thickness: 0.05~0.07mm (the thinner the better)
if above two criteria are not closely satisfied, various problems are destined to occur.