Uses all of his parts. All I did was modified one part (the Cover) to fit into a 4040 Aluminum Extrusion for mounting. I take no credit for the work put behind it as Stefan did all the work. I just modified it slightly to work with my OneUp/TwoUp Full Redesign
I recommend downloading all the parts from his except for the back plate. That way they should be the latest version if he needs to tweak something internally. I included the version I based the back plate off of but if he tweaks his due to a reliability thing then the files may not be accurate. The Back plate just has hole spacing so in theory any changes on his end shouldn't affect this plate. Comment if they do and I'll re-download and update mine.