M4 Threaded inserts are needed
Without MMU:
Import in PrusaSlicer and split to objects
Hide/ unhide the shield parts you like to slice
Slice the red, the blue and the yellow parts sperate without any loops or brim and set the Elephant foot compensation to 0
Unhide thegrey shield part and hide the rest of the model
now slice the shield with standart 0.2 print settings
print the red, blue and yellow parts first
don´t forget to remove the purgeline after each part is printed
change filament color and print the next part
done;-)
for conviniance a ready to print g-code numbert from 1 to 4 is in the downloadsection
1 Red Phase
2 Yellow Phase
3 Blue Phase
4 Grey Phase
happy printing
The author hasn't provided the model origin yet.