Extrusion(cut)

[graann]

I have just started using Inventor 10 after a couple of years with Autocad 2006.

I am struggling with various aspects and attached are a couple of files which I am presently working with.

Can anybody explain why 3 mm dia extrusion does not go horizontally through the object.

I am sorry but it is the best description I can give.

If anyone would be so kind as how I would approach going about the completed part it would be much appreciated.

[Lazer]

Pick a face that is square to the the hole and sketch on it, your hole looks to me like you have sketched on the rib and not the square base.

[Lazer]

See attached, take note of the workplane.

[graann]

Many thanks for your reply.

When I tried to extrude/cut the 3mm hole I did the following.

I created an xy workplane and dragged -35 mm to centre of large holes.

Then sliced graphics.

Then I sketched 3mm dia hole on work plane and extruded/cut in both directions.

Any advice is very much appreciated.

[Lazer]

The way I did it was I sketched on the face of the base (see above workplane location) the projected the geometry of the boss then placed a workpoint in the correct place, then used the hole feature to make the hole.

 

EDIT:Looks like you only have half the hole?