Autodesk Inventor

[#1]

I'm very new at this so I'm sorry if this is dumb. I created a cylinder with a hole through the center and need to add holes through the face into the center hole and I can't figure out how. Any help would be greatly appreciated. Thanks in advance.

[#2 · Accepted solution]

Create new workplane.

Select one of the origin planes or axis.

Select side of cylinder.

Now you have a plane on which to Sketch a Hole Center Point.

[#3]

Sorry if I seem a bit inept, but I can't seem to do this at all. I have a 1.5" dia Cylinder and need 4 holes in the side. The directions you gave aren't making much sense to me. I have tried to do the things you suggested but so far nothing. I am using Inventor 2013.

[#4]

See image below