I was looking to do 2D drawing with my MP Mini Select V1. I couldn't find a single attachment for a pen to do this so I decided to make one myself. You will need to print out both files. The two parts should sandwich a pen by having small binder clips on each side. It is held on right where the fan assembly would have been with the clips for holding the fan. I wired the fan assembly to the bowden tube. I tried it myself and it does work. The hardest thing is using the right software to make the g code. If anybody has some pretty easy ways, I am all ears. I hope you enjoy.