I always loved the Pilot G-2. It is my favorite pen for university and to take notes in general.

So I thought about an upgrade in terms of looks and coolness. My goal was to give it a timeless minimalist look and the coolest way to use a pen with bolt action.

I designed this pen to use with parts from an Pilot G-2 but you can buy the mine as an spare part and the spring needed can be sourced on AliExpress or eBay. If you chose the version with the screw in the bolt you would also need a M2.5x10 screw with a zylindical head.

It is easy to print with the 0.2mm nozzel and even more easy to assemble. It is up to you wether you choose the version with a screw in the bolt which is more robust and has a little industrial touch or the version without the screw which is more uniform.

The clicking and using it is quite fun and maybe even a bit addictive;) It may be varied in color or one could even combine different colors to mark different colored mines inside.

I also designed a clip for four pens to hold. My favorite colors (blue, black, green, red) for university can be transported like this more easily.