Shell Question

peter_paton

Hi, I wonder if someone can assist me.  In the example in the link I used the shell feature, however I don't want the profile around the central circle - this needs to be a through hole.  Is there a way to delete unwanted features in shell or is there another way to do this?  Thanks in advance.

https://cad.onshape.com/documents/041ad3595ca618f095e101f0/w/71c52ec973ef354590c13847/e/6d1f71cb232ca9d00e721502

Daniel_Kane

Hi Peter, there are a few different ways to accomplish this. I have shown 2 options in this document: https://cad.onshape.com/documents/dda14d95a55cf67a300b0bea/w/034e979d715eed817dc94910/e/ce2c9d5b2311c6dea87a5f2f

The first option is to add the face of the inner hole to the "faces to remove" in the Shell feature.

The second method is to shell the part before making the through-hole cut. This approach requires an additional feature though.

Hope this helps!

wayne_sauder

@peter_paton
You can use the move face command, the delete face command, or create a sketch and extrude remove(would not recommend this option). You can also select the inner face of that profile while in the shell feature and that may do what you want.  

peter_paton

Thanks for the quick feedback Wayne and Daniel.  Sorry, I'm not getting it. I can't add a face to remove - this has the effect of undoing the shell, or I get a red "no go".  I have tried shelling before and after adding the through-hole but still get the central feature. 

Wayne, should I be seeing the move/delete face commands in the shell feature?

peter_paton

Update - I found the move face command and that did the trick!  Thanks for your help.

peter_paton

Spoke too soon! Here is a link to the actual part I am looking to work on - when I tried on that nothing happened.  I'm guessing it is because I used a slot command to form the through hole.  https://cad.onshape.com/documents/d5fe71a86d1d1c6e2e5ea244/w/4d699c1ec38631e1df98c937/e/3fa7c8200eef93c00c3d2a13

wayne_sauder

@peter_paton
Move face works for me. 
https://cad.onshape.com/documents/0e7a1d092a190d3f24ac1788/w/7cbd7e6631e03a1037a23f74/e/b90b5db9f60c1b85e85032aa
It also works to select the inner face of that profile while in the shell command. 

wayne_sauder

Use the up to option. 

peter_paton

Hi Wayne, yes I worked it out after I made my last post. I realised it was systematically removing the face segments(?) and when I kept selecting them I deleted the profile. Thanks for your advice.