What to replace with timeline component to get the character going both ways in a spline, and distance and speed based instead time?

[ClockworkOcean]

See this

What math to calculate an even play rate for movement along a spline regardless of length?

I’ve set up a simple actor BP with a spline and a skeletal mesh that moves along said spline. I’ve also set the play rate of my timeline (which is 1 second long) to be 1/DurationInSeconds meaning whatever number I type for DurationInSeconds is how long it will take to play the timeline. It’s all working perfectly. [SplineMesh] My question is; what would the math be to determine the duration to use regardless of the length of the spline so that the mesh looks like it’s always moving at a consi…