I am looking at making a 3d printer with my friend over the summer, and I was wondering if there were specific things I could find to make it cheaper, like is reusing the actual inkjet printer parts usefull or are they too fragile. The point of this project is to make the least expensive 3d printer that can still make usefull parts, so any ideas on ways to get parts for free are appreciated. Getting old electronics is no problem to me, as I am aquanted with many people who have a habit of breaking them and throwing them away.