Unable to mirror a pattern

[philip.wright9ZCEG]

When I attempt to mirror features which include a pattern across a midplane I am getting the error "No pattern instances could be intersected with the original body. Try adjusting the pattern settings, or changing the selections."

Find my design attached. I am trying to mirror the cabinet side including the drawer runner bodies and circular cuts created with a rectangular pattern according to the user parameter TRAY_COUNT. 

Steps to recreate error:

1. Open mirror function
2. Select 'Features' object type
3. Select the features: Extrude2, Extrude4, Extrude5, R-Pattern2
4. Select Mirror Plane: Plane1
5. Click OK

I am very far from an expert. I think what I am trying to achieve is clear. How best to do it?

• perhaps my use of pattern function is misguided. eg I do not need 2 axis but cannot get rid of 2nd.
• perhaps I need to mirror and then pattern both sides separately?

Any help appreciated. Thanks.

[davebYYPCU]

I won’t have access to the file for a while, 

Mirror the resultant body/ies, 

(Extrude?) Cuts would have to land on the same body, for mirror feature to work.

Might help...

[philip.wright9ZCEG]

Thanks Dave. If I understand your suggestion correctly -

I am unable to mirror the bodies because the number of bodies is not known. This is because bodies are created according to a user parameter (ie the user parameter TRAY_COUNT is entered into the quantity field of a pattern feature). 

[TrippyLighting · Accepted solution]

The issue is the order of operations. Do you want to also mirror the side panel (body2)?

[philip.wright9ZCEG]

Hello Peter

Yes I do want to mirror the side (body2). I was attempting to do this by mirroring the feature Extrude2.

Please could you explain further. Unfortunately I am unable to open your upload because we do not have the latest Fusion update installed here at our school.

[philip.wright9ZCEG]

Hello Peter

Actually your response mentioning bodies and order sent me in the right direction. I have sorted this now thanks. I had to mirror the bodies and then pattern (rather than pattern and then mirror).

Thanks!