Printing may require some light internal supports. They can be a bit of a nuicance to remove, but it's ok. Fitting the tape dispenser into the reinforcement shell is also quite a tight fit and requires maneouvering the two parts inside of one another like trying to carry a sofa round a corner in a corridor (see pics). Once it's in, it's a really nice and snug fit.
The author remixed this model.
Adjusted the shape and height to fit the Magic tape dispenser, and brought the overhangs that hold it in place out further.