This shade is modeled to fit the base of the "Lampan" lamp from Ikea.
It is printed in 5 bottom parts and 5 top parts and is easily assembled, completely without glue, using 5 small connector pieces where the corners meet.
https://www.ikea.com/us/en/p/lampan-table-lamp-with-led-bulb-white-90416325/
I recommend printing the pieces with brims turned on as there is not allot of surface coverage on each piece to the build plate.
0.2mm with 0% infill works fine. There are parts that bridge poorly which will leave small filament noodles, but they can be trimmed easily with an x-acto knife.
The author hasn't provided the model origin yet.