The frame of the plotter is made as usually of Merkur. The brain of this plotter is Arduino Nano. Axes X and Y are made of DVD drives, Z axis is operated by a servo. I used two L293D stepper drivers to control stepper motors on X and Y axes.
I also created control program in Processing, enabling you to simulate Gcode and test if it is properly generated, stream Gcode to plotter, visualize a path of the pen, send individual commands, manually control a position of the pen.
You can find all the source codes in my GitHub repository: https://github.com/adyczech/MiniCNCPlotter
Add-on for Inkscape: https://github.com/martymcguire/inkscape-unicorn
GUI library for Processing: http://www.sojamo.de/libraries/controlP5/
