This multi colored case is printed on a printer with a single Extruder. For this, the models are sliced in slices. Start printing with part 1. The letter stands for the color (R ==> red, w ==> white, g ==> gray and s ==> black, sorry for this, but I gave my models German names and s is for "Schwarz").
To position the model on the printer bed, use the "Deadpool.stl" file. This is the complete case. You can center it in your slicing Software and use it as reference for position the other parts, remove it before slicing.
After printing the first part leave it on the printer bed. Change the cooler and print the next part.
These step is very difficult! When there is already an object in the printer, you printer may Crash. Set the Speed Level very low. It worked fine with a Velleman K8200 printer, but maybe it won't work with other printer types!

Velleman k8200

No

No

0,2

25%

The files contains all necessary supports.