Hi,

Two options for this ...

1)
There is a menu item called vMicro>Compiler>Copy to intermediate directory

There is also a visual studio project property called Intermediate Directory

These two items give you control of where all the output files are copied to after a build.

2)

Many Arduino cores also have a specific export command which creates an elf or hex in the sketch folder. If your core has this command then you should see the file in your sketch/project folder. The name of the file is also defined by the core and usually contains the name of the variant.