Nooby, "non-manifold solid" error, NX4

[VmaxVboost]

I upgraded to NX4.

Very simple, very nooby question

Sketch circle, extrude to cylinder

Sketch square on top face of cylinder, extrude into cylinder body, subract, creating pocket in cylinder

Sketch hexagon on bottom face of cylinder, extrude into cylinder body, subtract, get error "non-manifold solid"

??? Square subtraction was successful, but hexagon subraction has error ???

Any help?

Brian

 

[ewh]

Try extruding your hex slightly in the opposite direction as well. This may eliminate any zero thickness issues, which is often the cause for that error message.

 

[Xwheelguy]

Is the hexagon inscribed or circumscribed to the circle? That scenario could also produce a non-manifold solid.

Tim Flater
Senior Designer
Enkei America, Inc.

http://www.enkei.com

Some people are like slinkies....they don't really have a purpose, but they still bring a smile to your face when you push them down the stairs.

 

[VmaxVboost]

Thanks for your help and replies.

The hexagon is completely within the base circle of the cylinder.

The hexagon was created on the same datum plane as the base circle, but I didn't think that mattered.

Brian

 

[Xwheelguy]

IMO, it really shouldn't matter, but unfortunately in NX it sometimes does. I've just forced myself to always model so that all bodies (solids or sheets) extend past the target bodies, just to be on the safe side.

Tim Flater
Senior Designer
Enkei America, Inc.

http://www.enkei.com

Some people are like slinkies....they don't really have a purpose, but they still bring a smile to your face when you push them down the stairs.

 

[VmaxVboost]

As with most computer problems, it was "user error".

The hexagon sketch was not completely enclosed. Two lines did not share an endpoint.

Thanks for your help.

Brian