How to print the same model with 2 extruders?

[neilpeartwannabe]

How do I simply print the same model with each of my printer's two extruders? This is driving me INSANE, it should NOT be this difficult!

[parallyze]

This is driving me INSANE, it should NOT be this difficult!

Actually it's way more difficult helping people who avoid giving any information at all....

There's different ways to do this. Maybe you'd like to add a factory file showing the objects/settings in question so others
can have a look at it. If using a sailfish based printer there's "ditto printing", which can be used to print small objects
using both extruders at the same time - but that's a firmware feature and doesn't require any changes while slicing...