FIRST OF ALL THIS PROJECT IS ARDUINO BASED AND THE CHALLANGE IS TO NOT USE A ARDUINO 
I have an awesome idea, i follow elektronics in high school now and i 'm working on my integrated test and normaly you need one year (more 7 months) for making something but i have build it in 1 moth and code only took me 2days.
I 'm making a polargraph "robot" and i think it is a great project for on your channel. I
have a video of the first drawing on my channel: https://www.youtube.com/watch?v=hoColEY3kdA
And all the info i got come from this site http://www.hackerspace-ffm.de/wiki/index.php?title=Drawbot@MfK#HPGL_Dateien_.28aus_SVG_konvertiert.29
And i know you can just use an arduino but i'm using an pic16F887 with 2 A4988 stepper drivers.
So maybe you can try it also with a PIC microcontroller or AVR but NO ARDUINO that's to easy
--greats jordy
