Odd behavior with push-pull, extrude.

[Anonymous]

I am very very new at fusion 360..  I finally have a project that required me to play with it.  After I do an push pull or extrude through this part - it creates an unexpected feature..  (I am 3d printing this part - exporting it as a stl - the anomoly doesn't transfer.    I have tried quite a few different ways to create the 'fins' but each one seems to create these extra feature.  They don't seem to be clickable and doesn't seem to have any thickness..

[jeff_strater · Accepted solution]

it's hard to say without the model.  Can you share it here?  This sounds like a faceting problem.  One thing you can try is to change the display detail of the body:

set it to "custom", and try one of the other settings:

you can also control the refinement of the STL on export:

set the refinement to "custom", and you can choose from the dropdown, or play with the sliders a bit.

[Anonymous]

Setting the display detail to medium fixed it!

Thanks!