okay so I’m trying to build a tennis ball launcher for my school so we can showcase it- my teacher helped me get motors and stuff setup similar to this image.
Question: How would I include a spring so that (after we manually compress it) anyone can use a button or something to release the spring and push the ball towards the wheels please? I can’t find anything simple? ![enter image description here]![enter image description here]
I was thinking of having a bung or something at the end of the spring??