Simple Minimalistic Pen With Cap.

I had some pen ink cartridges lying around and nowhere to put them, so I made a simple housing for a pen cartridge. There are two versions.The first one does have a screw, but I found that you really have to wrench the screw on the first time. That's why I made one without the screw.The second(and simpler) one has a place where you insert the cartridge; that part does not have a screw, so it is less secure. (If you don't know what I'm talking about, look at all the photos—the part that looks like a mushroom is the cap to keep the ink secure.)The Benefit of this is that once you have a ink cartrige you don't need any other hardware. I will also occasionally post new upgrades to this pen to optimize it, because it is not perfect, (yes that probably will affect how many people decide to print it) but it is decent for now. I have had to print at least 5 pens in the making of this pen, and none of them failed in the printing process, so hopefully this will give you some fait