Quote:
Originally posted by James114
Ya i know how to make stuff "revolve" around a flat surface, but i don't know how to start a hole on the curved surface of a cylinder.
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You need to make a work plane that's tangent to the cylinder. Then, create a new sketch on the plane and draw your hole. The hole will then cut into the cylinder.
If you're lucky, the intersection of two of the origin planes lies along the center of your cylinder. In that case, create a new work plane by clicking on one of the origin planes and dragging it away -- it'll ask you for an offset distance. That distance should equal the radius of your cylinder.
If you're not that lucky, you can fudge things a bit -- but how much depends on how accurate you need the whole depth to be. To do that, just drag a new work plane out beyond the edge of your cylinder. The features you create on that work plane will still affect the cylinder.
Then, create a circular pattern of that hole around the rest of the cylinder.