The Building Support sub-category is intended for all development support relating to architecture on the Roblox platform. This includes questions ranging in difficulty from extremely basic to even the most technical of issues.
You may present your thread how you choose, but you are required to answer the following questions in your thread;
What are you attempting to achieve? Want to make it stable.
What is the issue? (Keep it simple and clear - after some time it starts to vibrate
What solutions have you tried so far? i tried looking on dev forums but i didnt find anything clear
I’d try giving the cart a little more freedom regarding the spacing of the guide wheels. This would let the cart more more freely - relatively - while also making it so the physics don’t bug out.