this uses some quirks of diagonal belts to create an elevator that has 4 belts in a size smaller than 2x2 on the grid. in fact... this gives me an idea...
unfortunately, my spiral guide did not cover strategies used in this build, though I am planning a general belt guide that will include all the belt trickeries I know in this game including those used in all my blueprints. look forward to that! Here it is!

 If there are any issues with my blueprints please DM me on discord: Ludus Machinae#0007