i print this covid awareness sign with the Artillery sidewinder x1. i achieve this dual colour by feeding the red filament as the printer starts to print the letters.

20% infill

esun pla+ white

esun pla+ red

speed 60mm/s

small brim. 4 line count

use magigoo on the bed, i always use little glue, it dont hurt to use it for a little insurance

nozzle 210 c

bed 60c