Plotter with Arduino in size A2

My DIY plotter machine
It plots in this video on an A3 size paper, but the maximum is A2 w/o borders. Based on Arduino Uno + L298 stepper motor drives + Arduino plotter shield with L297 (my design) + Nema17 steppers + etc.
The movement of pen is by a solenoid.
Sorry the missing lines in text are because of the dying pen :-( The soft and even pen pressure is to be solved.

Schematic:
https://easyeda.com/horneczki/Plotter-pB7D93zQ8

Видео Plotter with Arduino in size A2 канала Horneczki Gábor