Pretty much the only way to get a hold of these in South America is to either buy a cricut (or similar proprietary solution) or buy a Chinese one.

I wish these were a bit more popular! I think drawing bots will never be as useful or popular as 3d printers so we might be stuck with poor solutions or building our own. The axidraw software is open source but I'm not sure there's been a whole lot of effort into adapting it to open hardware solutions. Though there's a project on thingverse that seems compatible.