Body Velocity train rolls over

[NTL331]

I’m trying to move a train made using mesh parts with Body Velocity.
I’m gradually increasing the speed with the script, but when the train approaches a curve, it always rolls over.
There is no change even if the density of the dolly is increased.
Why is this happening?

[AKIN19E_1]

I suggest you check the script again. You may not have added the return commands.(I hope I could help you )

[Cosmoaxis]

Body velocity is global, not local to the part it is inside of. It’s a bit like vector, rather than CFrame. I believe “BodyThrust” is relative to the part, so try using that instead.

[NTL331]

while true do
	wait()
	if script.Parent.Throttle == 1 then
		script.Parent.Value.Value = script.Parent.Value.Value + 1
		wait(0.3)
	end
	if script.Parent.Throttle == -1 then
		script.Parent.Value.Value = script.Parent.Value.Value - 1
		wait(0.3)
	end
	if script.Parent.Value.Value == -1 then
		script.Parent.Value.Value = 0
		wait()
	end
	script.Parent.BodyVelocity.Velocity = script.Parent.CFrame.LookVector*(script.Parent.Value.Value)
end

This is the script I’m using.

@CosmoCryptix

I believe “BodyThrust” is relative to the part, so try using that instead.

I’ve used VectorForce instead of BodyThrust, but I don’t like it because even if I use the brakes, it runs backwards past 0.