Filleted corners have strange behavior

joseph_newcomer

I create a joint as shown, where two separate extrusions meet.  In Inventor, these became one surface.  So when I did a fillet, it was correctly done at the corners.  But in OnShape, the individual extrusions retain their identity and the fillets make horrific artifacts as shown here.  There is no good way to create these as a single extrusion because these surfaces are based on independent extrusions that are supposed to create a single surface.  How do I join surfaces so they act as a single surface for filleting?

  

SethF

It's always a boon for communication if you're able to share a link to a public document with an example of your issue.

If I understand you correctly, and you want your separate extrudes to all be a part of the same part, you can select "Add" instead of "New" within the extrude feature.


Other times, it makes sense to leave them as separate bodies until later in the feature tree. In which case you can use the Boolean tool and select "Union."


Either way, once you've joined them together, they can be filleted as one part. And then if there's a reason you want them broken back up into separate parts, you could use a split or two.


Here's a link to my examples: https://cad.onshape.com/documents/542aa9a42c3e640c69daf1cc/w/f09e8ad0a19f402d44d9ef1c/e/fb0c48eeff12d5e092c1d26f?renderMode=0&uiState=618a69967061fd7390635d4f

NeilCooke

Please share your doc. The fact they are different colours means they are different parts or surfaces (any reason why you are using surfaces?) and they should be added together either during feature creation (select add in the UI) or by using the boolean feature.

joseph_newcomer

All my documents are public, but I'm not sure how to share them on the forum (I have shared them with another OnShape user who has been able to help me, but I give his email address to the share).  I'm still learning how to use all this, and appreciate your patience.

Anyway, I will try the "union" operation because that is what I need to do.  Thank you.

NeilCooke

If it's public, just share the URL

joseph_newcomer

All my documents are public, but I'm not sure how to share them on the forum (I have shared them with another OnShape user who has been able to help me, but I give his email address to the share).  I'm still learning how to use all this, and appreciate your patience.

Anyway, I will try the "union" operation because that is what I need to do

joseph_newcomer

Thanks for all the help.  I got it all working.  I am still learning how to move around in the program, and how to share in the forum.  I will try to be better about including examples.

michael3424

See this for info on sharing your design file here:

https://forum.onshape.com/discussion/9107/forum-post-checklist-read-this-first#latest