Quote Originally Posted by Geoff View Post
Problem is, you can't push Flex filament into an extruder
I was talking from experience I mean, I did print a lot of Ninjaflex on Creator. It worked brilliantly, did dual materials too.

You got to make sure the motors are aligned perfectly with the nozzle inlets in the alu block. Then the filament goes all the way down into the heater without problems.

Once you get it feeding, it works like a charm, but initially I had issues on having it not pull the ninjaflex into the motor. It would extrude a bit of filament and then jam. But if you do as I said, it should work OK.