It's hard to tell whites different compared to the original Sphinx. I looks like a ball screw on Y. Could you elaborate a bit on the differences and you're experiences with these mods? Thanks.
Sure, I had a problem with buy (in my country) 8mm lead screw. I had 10x12 Igus lead screws and nuts. I changed aluminium parts (on pics) and printed few elements.
Looks amazing, have you thought of adding an extension tube to the print head that the vacuum can be attached to save you being 'attached' to the project. Also I ma looking to do my own openbuild project and was wondering what CAD package you used to create the .jpg? I would like to use something very easy that can create a parts list from the diagram.