Here is another robotic solution that can serve as your personal writing and drawing machine. The AxiDraw V3 has rigid construction and twice the speed of the previous version. It can write or draw on any flat surface. You can use permanent markers and other pens to get started.
AxiDraw V3 can be used to prepare invitations, thank you cards, and everything in between. It lets you use your computer to produce human-like handwritten notes.