Print the big and small part and simply add some double tape on the side then push the papertowel on the small one to the bottom, keep 2cm on the big one and then tape the hanger where you want it.
To change the papertowel when it's finish, simply push in the direction of the big piece. The empty roll should detach by itself.
If you print it, and it works for you, please rate it, like it and post a make, that would be highly appreciated!
The author marked this model as their own original creation.