Below are some step-by-step images that will take you through this process. The best results are made by using Resin to fill the indices (numbers) rather than a plexi (its more accurate and looks better). However, not everyone is able to add resin so this tutorial will show you other methods. (there is a separate tutorial on adding resin, see categories on the right).
Below 6154 (only) for the gap around the edge (gaposis).