Stand desk made by myself for my office. It is completely mechanical. To go in stand mode you just lift the board and with lifting the left side higher like the right one the Stand desk is locked on top position. To go in sit mode lift the right side of the board and push the left side down, and the desk is going down until it's 42mm thick. In stand mode it's height is 400mm. The monitors must be in the middle position between stand and sit. With monitor-support and monitors that have an option to rotate and to change the hight, I can get a perfect view.The Stand desk is made from plywood. I can't upload a parametric step, so I made step files with different plywood thickness: 18mm; 18,5mm; 19mm; 19,5mm and 20mm. To make it fix on an office-table I used double-sided tape. The suction cups didn't make enough friction.