NO supports!

Nozzle: 0,4 mm

Infill: 10-15%

Infill Pattern: I always recommend Gyorid (as an Engineer I know that the Gyroid Pattern is always the best choice because of its stability and strength)

material:ZIRO Multicolor PLA (Available on Amazon)!

I recommend to put some glue on the print bed to get an 100% print after all!