I’ve been given some linear rails, and the only thing I can think to do with them is build a large format 3d printer. I have two 750mm and two 670mm rails, two carriages each.
I know there are several open-source plans for printers, and I could use a cool project to work on. I already have a smaller printer to work with so I can already make a lot of the parts.
Has anyone done this before? What printer did you build, and do you have any recommendations and things to look out for?


I’ve helped build a couple 350mm Voron v2 for the local library makerspace.
Those are some big linear rails!! Can’t wait to see what you make with that. Maybe a belt printer would be good, lot of the huge ones are belt based for some reason. Like how about this one?
https://3ddistributed.com/mrrf-2019/white-knight-3d-printer/