I needed a pen compact enough to be used as a sort of bookmark, to be carried in the wallet on in the breast pocket. It had to be esay and fast to print and also comfortable enough to use it to take some brief notes.
This is what I came up with, it is not the classical round pen that screws in its cap and attaches to the keyring.
If you have any suggestions please let me know in the comments and I will try to update the model
There are currently 2 models, the only difference is the diameter of the hole for the actual pen clipPen3 should fit any Bic refill while clipPen4 is for larger models.
Just cut the refill of a bic-like pen to size and slide it into the printed part.
BE CAREFUL WITH THE INK THAT MAY SPILL, to avoid that use an used pen with less ink.