Hey everyone, merry Christmas.
Everything that showed is now possible in-engine, except for his excellent visualization, but the old visualization still works fine.
Here’s a blueprint that is basically 's old blueprint, but one is for 4.10. I also left out some nodes that were not strictly necessary to start creating! 
And the variables:
Just set Spacing and TangentScale default to 100 to begin with.
If the mesh you’re using seems to be placed strangely, you might need to change the forward vector for the SplineMeshComponent:
- Select the Add Spline Mesh Component node in the blueprint
- In the details panel search for the Forward Axis property and change it to something that works for your mesh
- (Optional) improve the blueprint by making an exposed variable.