Bolt Action Pen V2

I have reworked my original bolt-action pen design and have been using this new version daily at work for several months now.i included a step and f3d file so you can easily edit my design and add your logo or name to the pen (use the emboss feature in fusion 360 with a 0.3mm depth)Assembling it is quite simple.To create the "pen pin," start by using an M3 screw to create threads inside the printed pin ball. You can heat the ball or screw slightly with a lighter to make it softer, allowing for easier screwing. Once the threads are formed, unscrew it again and remove the head of the M3 screw. Then, take the remaining portion of the screw with a pair of tweezers and apply a small amount of super glue to one side. Screw the pin ball onto the glued side of the screw and let it dry. Once dry, trim it to the final size, which should be approximately 10.7mm in length.Now, you can insert the spring and the ink refill into the pen. Press down on the "Pen Stop" and rotate it unti