We bought the Zero Gravity Table in 2015; we love it still. I had been looking at shelves that rest on the top of the monitor with legs on the back, but then realized that the monitor post was an untapped resource. The 2 shelf components were printed with a .6mm nozzle and fit together perfectly. I realize that the number of 3D printing enthusiasts that have a ZG table is probably tiny. I'm more interested in sharing the hands-on .6mm info. (This is all Thomas Sanladerer's fault!) I encourage anyone to print something in .6mm that has been previously printed in .4mm and compare the quality and time expended. I was truly surprised. YMMV.