Eric Martinez create a cap for the engine mounts that protrude through the engine baffles. He created his design in PLA and then had a company print the final design in a high temp (Nylon PA12 with Glass). He used a service CraftCloud3D.COM to print this as his PRUSA MK3S+ could not handle the print temps as well as he wanted. Here is the STL file. Also, here is an image of the cap.