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