Ultimaker extruder damper

I have migrated to Printables because of the security and UX issues here at Thingiverse. You can find this model here:

https://www.printables.com/model/166853-ultimaker-extruder-damper

Put this thing between the extruder and the frame. It will dampen some of the retraction noise. If you put something soft under the lower support, it is even more effective.