You can create everything with BP, so far i had no need for using C++. You have Plugins and Blueprints, i see no need for C++. My goal is making a legit 100% blueprint MMORPG in a big scale. I know it wont take 6months but about 3-6 years. No problem for me, this is my goal.
You know UE4 or just starting? Basicly i wouldn’t care about the “rails”, create a “LINE” between rails that will center the cart, so the wheels will fit 