I recommend to print it with white PETG filament for the best contrast of elements in the table and not disturbing background color. Tested 18mm version only. It is stable and sufficient. Successfully tested also with a tablet. Print with 0.4mm or 0.6mm nozzle, 0.3mm layer height, 100% infill.
The author remixed this model.
Slightly narrower design of stand with thinner walls to save filament. Still very strong and stable. Two versions - 18mm for transparent and 150mm for opaque background of the periodic table.