Happy to help, MM.
Temperature modifier:
It is a simple little app that rewrites specific temperate calls in the .Cube3 file with a new temperature and the Cube 3 obeys.
Using it requests a very specific routine and (?) a few libraries to be available. I could never get it to work on Win7 but a lot of others have successfully used it.
If the filament is not any harder than normal, then no, you should be fine with the filament drive motor.
Funny thing with Stepper Motors, they don't really wear out electrically, but they fail from bushing wear and from shaft degradation.
The replacement is available and fairly cheap. I have yet to wear on out <knocks on wood>.
And the way that the motor is used in the Cube 3, even bushing wear should be minimal since there is no side-load.
So yes, more heat, more flow. I'll have to find the links to the temp converter... Other may need to help in getting it working with you.
It certainly does seem like the right route for this filament.
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http://www.print3dforum.com/showthre...ature+modifier