This is very nice and I'm looking forward to seeing what it turns into! Though I do agree the release could be improved, I suck at launches so I can't help you!
Thank you! It's alright, I hardly know anything too.
Basically, it's getting stuck because the teeth on the adjacent gears aren't lined up with each other. If they're lined up, it should slide right out. Try using a hot glue gun to glue each pair of gears together. Might also help to lubricate the gears so they slide more easily.
Alternatively, you could use just one gear instead of 2 next to each other. That's what I would do, personally.
This really did help, now the release is smooth as can be. I initially used two because I feared one gear wouldn't be strong enough. Obviously I was wrong. Thanks a ton!
Have you tried Maarten's launch or Jesper's? The Maarten one is longer, but gives more power I think. Also what is that material you are using for the launch? (The green thingy) Theo only ride I could think of that wouldn't make sense with to start with the launch is Cheetah Hunt, or Maverick.
Maarten's launch and Jesper's launch concepts both use too many pieces that I don't have. Also, both of them take up too much space. I basically had to make a launch that was really small, and didn't use many pieces, but was still functional. Also, the band I'm using is one of those workout bands, the thinnest one I could find. Works pretty much the same as surgical tubing. Oh, and nope, not Intamin blitz.