Summary

This design of this lamp shade is oriented on a "classic" vase shape and has some thread decor in addition.
The opening for the socket is 44mm in diameter.
Because the threads have some quite steep overhangs I increased the extrusion width to 150% nozzle diameter which worked really well.

But because of the steep angles there are repeating little gaps between some layers giving some nice net/grid effect which also increases the amount of light which leaves the lampshade.

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Print Settings

Printer:

CR-10

                                            Rafts:                      
No

Supports:

                                            Resolution:                      
0.3mm

Infill:

                    
                        Notes:                     I was using a 0.4mm diameter nozzle and set the extrusion width to 0.6mm to allow the steep overhangs to get printed well.

Printed in vase mode with 3 solid bottom layers.