Lamp shade for long tube COB (LED) bulb

Simple shade for tube bulb. The bulb is 30cm size (inc. the thread), the shade is 25cm (max. of my printer capabilities).

Printed with translucent PETG. PETG because it has higher melting point than PLA, but the bulb I have (6W) does not produce that much heat anyway, so PLA would be probably OK too.

I did not put holes in the shade part on purpose, because I used translucent filament and I did not want any distortion in the pattern where the holes would be printed. Instead I drilled them afterwards.

Other material needed: 2x M4x10 screws and nuts

SCAD files attached for any modification.

Important: the parts thickness is optimized for 0.6mm line width (read the notes below)

Print Settings

Printer Brand:

Creality

Printer:

Ender 3 Pro

Rafts:

Yes

Supports:

No

Resolution:

0.28

Infill:

40%

Filament: Real Filament PETG translucent green

Notes:

Important: The part thickness is optimized for 0.6mm line width (with 0.4mm nozzle)

For the shade part, I used brim, which was good enough. Raft would make the height just beyond my printer capabilities.