Round Ceiling Lamp Shade

Description: Model of a Lamp Shade Replacement for Circular LampsA friend of my had this lamp shade that got worn out over many years and asked if it was possible to make a new one matching the old.I tried and came up with this design. its not a 100% copy of the original, due to my lag of knowledge using CAD softwares The Shade measures 244.9x245x30 Printed mine on a Bambu Lab A1 in PETG. Print time is around 6hours with a 0.4mm nozzle I think the print can be much better. im new to printing and may not have used to best settings hope this profile can make somone or somones grand parrent happy :)