Mirror Function Disappearing Part from Screen

[Anonymous]

So, I am a student in college who is learning to use AutoDesk Fusion 360 for the first time, and I am encountering an issue with the mirror function. I'm creating a basic electrical conduit box part for my CAD class, and I need to select a feature in order to mirror it to get a screw hole on the other side of the box. However, after selecting the features and the plane to mirror the feature; the entire part disappears from the screen once I click the OK button to mirror the object. Oddly, the timeline on the bottom of the screen is still there. None of my peers in the class encountered this problem, and I tried uninstalling and reinstalling the software. If anyone knows what might be going on with this, please give me a shout as it would be greatly appreciated! The file is attached here as well. Thank you!

-Brett

[jhackney1972 · Accepted solution]

You issue started when you made the feature, containing the hole, a New Body, instead of a Join.  You then tried to correct using the Combine Body command.  This gets in the way of doing a mirror, causing the whole mode to disappear.  You also got a little out of sequence.  Your mirror should come before the end fitting to make sure the mirrored features do not penetrate the end fitting. 

Since this is a learning experience, I will not attach my corrected model, you do it for yourself.

Take a look at the Screencast.

Screencast Link: Click Here