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Thanks for your update. Your settings seem to be just OK and hopefully you will print a working version.

Nevertheless you just came up with a splendid idea! If the tongue breaks of you could, as you wrote, just put a piece of foam or rubber to take up the space and create friction.

We will see if we can make a derivative of the cone building on your idea. Maybe there is a simple way to put a commonly available office rubber band to create the friction force.