Parker Retractable Ink Refill Cartridge

grabcad

To create a model for my pen's cartridge, I meticulously measured a real one and developed an accurate design. Unfortunately, I couldn't find any suitable existing models, so I shared mine with other pen designers in case they found it helpful. The model is based on the 30525PP Parker Quink Medium Retractable Gel Refill but should be applicable to similar Parker cartridges. Although the helical ramps on the tail cap are mostly accurate, there might be slight variations along the ramp sweeps. As a preliminary design and prototyping tool, it should suffice for design purposes; however, it is recommended to verify its geometry before investing in major production costs.