/diy/ - Do It Yourself

maybe a stupid question for /EMT/ general but this is a CNC question and I guess it *technically* fits here and I don't want to make a thread cause I haven't lurked enuf on this board. anyway onto my question.

i want to make a pen plotter. I have access to a 3d printer and tools and what all. my budget is somewhere around 200. all i want is 2 axis and A2 size working bed. I found this https://github.com/bdring/midTbot_esp32 and i am wondering if modifying the design would be as simple as just making the rods and belts longer and fuckin with the plotting software bed size? i am also looking into blueprint style plotters but they seem more expensive?

please help.