Several threads have asked how to make a half cylinder pocket, such as one to hold poker chips. It can be done with closely spaced fluting toolpaths, but, for me, that is not a very rigorous method. Well,l I figured out another way.
In the 3D clip art, there are Circular tabs. One can add one to the part, downward subtracted, with a zero plane, and size it to suit. And voila! there is your circular pocket.
Good judgement comes from experience.
Experience comes from bad judgement.