These are three designs for an "Evolution Door," an artistic type of door based off the works of Klemens Torggler.

The hinges on the flip doors are print-in-place, but everything else will require assembly with M3 screws and nuts.

Sliding Door BOM: 1x Sliding Door 1 1x Sliding Door 2 2x Link 1x Post 2x Washer Thick Approx 5x Washer Thin (Or more) 6x M3 Nut 2x M3x12mm screw 3x M3x8mm screw 1x M3x5mm screw

Flipping Door BOM: 2x Flip Door 1 (or 2x Flip Door 2) 1x Post 2x Washer Thick 2x M3x15mm screw 1x M3x8mm screw

You may need slightly longer/shorter screws that what I've listed here or more/fewer thin washers to get a smooth motion.