Considering that one of your 7' Practicing Nets, your 7� Multi-Sport Net that costs $50 (http://sklz.com/baseball-pitchbacks-practice-nets/7-foot-practice-net), which it would take to catch the ball channeling it to the returning a 'high-tech' throwing device with a different adjustable angles, I'd say that a machine in the MSRP $60 range would be quite impossible. Just my opinion.  And 'my' attemp wouldn't justify my time.

Sincerely,

Bear