There’s arguably no better social distancing practice partner than a ball machine. True, you don’t get the live ball benefits—not to mention the trash talk or post-workout adult beverage ...

For tennis ball machines to shoot balls with perfect accuracy and at nearly 100 miles per hour, it takes a series of carefully calibrated parts working together. Here's what it looks like inside.

Set up the ball machine to feed deep to one corner and place a chair at the center of the baseline. Make sure there is enough time between feeds so you have time for two sprints, one out to the ...

Whether you're a beginner looking to improve your backhand or a seasoned player working on your serve, a tennis ball machine can be the game-changer you've been waiting for. Offering the freedom ...

[hw97karbine] has made a pretty cool tennis ball cannon. While making a cannon of this sort is nothing new to us, we were impressed by the effort taken to get a stoichiometrically ideal mixture of ...