Bolt Action Pen

Bolt Action PenBoost Meto support future, better projectsMembershipCheck out how to be part of my world! Every bit of support is a huge boost to my motivation, helping me design even better modelsThis is a 3D-printed pen designed to resemble a firearm barrel with a 4-lug bolt-action mechanism. The movement of the bolt extends the pen tip, allowing for writing, while retracting the bolt hides the pen tip. The design mimics the operation of a real bolt-action system, making it both functional and visually appealing. Perfect for firearm enthusiasts and unique desk accessories!The biggest concern I anticipate is the length and thickness of the pen refill. I simply went to a bookstore and bought universal refills, but I’m unsure if this size is truly universal across different countries. My refill measures 106.5mm in length, with a metal tip diameter of 2.3mm and a plastic body diameter of 3mm. I hope these sizes are available to you as well.If not, you can calibrate the pen by adjusting th