Tennis Tutor Machine - How to replace or adjust 2-line width or sensor 

good video.. in my machine the ball seems to be stuck between the two spinning rollers and doesn't eject the ball any ideas?

How can I set the oscillator in TT Plus to the center position of the court?

Is there a way to have a fixed angle? After feeding few balls, it is getting lose.

Thank you

Hi! Do you know where to find replacement parts for tennis tutor machine? The round belt that spits the balls broke for mine.