I have actually posted about some of the ones I have made before using Carbide Create. I use the drill tool path with 1/8 inch HSS drill bits. I run the router at the lowest RPM and in most cases have no issue.
I use the linear array to make all my holes in a line and the circle array in Carbide Create to make the paths that have to go around a corner. The link above describes how I went about it for both.