I've designed and build a large 3D printer from scratch, I'll be putting the info and files to make your own here soon, in the meantime you can take a look at the playlist where everything happens:

The Bill Of Materials can be found here, it is still incomplete but useful, if you know of any source for any material or any errors or anything than can be added let me know and I'll add it. 

The Fusion360 original file can be found here, from there you can download all the STLs and make any modifications you need to do. Thanks for watching!