These Prusa i3 MK3 to MK3S upgrade parts are easy to use. First, print the parts using the provided STL files. Make sure your 3D printer is properly calibrated for the best results. When installing the parts, take your time and follow the general guidelines for your Prusa printer. As for maintenance, keep the parts clean and free from dust. If you notice any signs of wear and tear, replace the parts as needed. If you have any questions during the process, don't hesitate to contact our experts.