Knowledge Barrier

Inventor

To make the speaker representation the hole ideally would be arrayed from a single point in the centre of the sphere. 

Sadly I had no knowledge of how to do such a thing in Autodesk Inventor.

Not to late to try and learn. 

With Charlie's help we tried different ways of trying to get it done. The array tool didn't work because I'm trying to array around a sphere which has two directions where the array could only do it with one such as a cylinder.

I watched a few tutorials online to see if they would help solve the problem. The were very cool and I'm glad I now know how to use those tools, but they didn't help me solve my problem.

The next day I was in working on my model trying to find an affective way to represent my speaker that I could achieve. Charlie came in and said that I could the "tangent to a point on a curve, plane" tool. He showed me how to do it and we both thought it would work.

Tester:

I tried it out on a cylinder first before attempting to apply it to my own model.

In the sketch put a line out to every point on the sphere that you would like to create a plane on. Get the "tangent to a point on a curve tool" and create a plane at every point. Create a circle at the centre of every plane. Extrude each circle to the centre of the sphere. Yay!!