Simple Extrude Cut Fails

[Mech_Engineer]

I am following the cell phone front cover tutorial in WF3 to create a curved extruded earpiece cut as shown below. This extrude cut creates a curved cut at a corner of a rectangular extrusion.The feature fails and I get the error message:Unattached EXTRUDE_4 was detected.

I have used tangent constraint on the lower entity and align end point and line on the upper. Using ver 2001 in the past, company practice was to not use "open" cuts , but to "close" or extend the cut outside the model to prevent this type of failure. When I do a close cut by adding horizontal and vertical entities the feature creation is successful. Is there something I am doing wrong in the tutorial with the open cut?




Edited by: Mech_Engineer

 

[kdem]

Did you select the remove material icon and flip the direction arrow if needed?

 

[Mech_Engineer]

Did you select the remove material icon and flip the direction arrow if needed?

Yes, I did both.

 

[rmatija]

Section kloset ?

 

[kdem]

Looking at your picture again it doesn't look like the end of your arc is on the vertical reference (looks like there is a .002 offset). There should be two constarints a tangent and colinear. Otherwise if your sketch is correct the only way I get the message you are seeing is ifthe feature isadding material.
Edited by: kdem

 

[Mech_Engineer]

Looking at your picture again it doesn't look like the end of your arc is on the vertical reference (looks like there is a .002 offset). There should be two constarints a tangent and colinear. Otherwise if your sketch is correct the only way I get the message you are seeing is ifthe feature isadding material.

Good catch - I noticed this offset at the tangent too and was able to fix it in a slightly dfferent way. I trimmed the part of entity with the offset that is pass the tangent and used a single tangent constraint on the vertical reference and a colinear on the horizontal reference. But an added colinear constraint on the vertical reference as you suggest will prevent the need for triming.