to start I created a box to extrude from then extrude 3/4 of an inch
this is where I extruded the shape
then I drew where the ball will role and made it the right thickness everywhere. this took the longest to do because the dimensions have to be perfect.
after extruding I added a chafer to make it look more pleasing to the eye.
What I learned
I learned how to use more constraints in inventor to create drawings as well as how to create more advanced files. I also learned how to extrude words out of inventor.