I searched for a ready one on thingverse but it wasn't there and my girlfriend needed it for her 3d printer so I made one. Use the Gcode provided and ignore the stl. I hope this wil be helpful to a lot of people. This has been realised for cr-10 mounting 0.8 nozzle if you need it for a different nozzle size just write to me (note: I have already designed even a 0.4 nozzle version) and I'll be happy to make an another version.

If you would like to give me a small tip I would be really happy and grateful!