FGarbrecht
Member
Having purchased at least 5 different styles of FP converters and cartridges (all 'standard international') exactly only one makes a good friction fit on the nipple end of a Bock type 180 triple. I assume therefore that it must be standard practice among FP makers that the section needs to be designed so that the diameter of the hole that admits the head of the converter must be exactly sized to friction fit that specific converter or cartridge, or risk the converter coming loose in the pen body and making a big mess. Is this a correct assumption or am I missing some special sauce or other obvious fact of FP design? I had assumed that the converter and feed/housing attach solely by friction fit of the nipple, but this would appear to be incorrect.
Thanks
Thanks