A selection of some of the grip variations. Many more were made...
The design of this writing instrument focused primarily on the connection between the hands and the writing instrument to create something personal that the user will enjoy carrying with them.
Through the grip, the pen should sit perfectly in the hand of the writer and be under their control. The grip is also where the refill is adjusted. It is also the seat of the attachment clip.
In addition to looking for interesting shapes, I focused on ergonomics and printability for the grip piece. Some designs were tested on my FDM printer.