How to create a track for a model mine railway?

[janus2]

Hello!
I would like to create a track for a model mine railway with a 3D printer. In such a mine railway, the track makes many curves and bends in all directions. But the distance between the two rails must remain the same. I am looking for a method where I can edit the XYZ position and twist at each point afterward.

I have found a partial solution with ‘Path’.

I can define the path anywhere in 3D space.

I can move any point to a XYZ position afterward.

But I cannot twist the track at special points!

At the moment, I have no idea how to achieve this. But I'm sure the experts here have a solution.

Thanks a lot

Jan

[davebYYPCU]

Getting fancy gets progressively harder to set up.

Twist Angle works from start to finish, with a single path Sweep.

More control will come from a second "Guide Rail" to modify the angles, but the Twist Angle will be unavailable when you use 2 sketch lines.

Loft can have even more sketch lines to control, but you will need a profile at each end of the track and keeping constant width with Loft is harder to do.

Might help...

[janus2]

@davebYYPCU 

Hello!

Thank you very much for your answer.

But that's not the solution I'm looking for. I would like to be able to define the twist at each individual point (parametrically). Like on a rollercoaster.

As you say: twist is only for the complete part. Not for individual segments.
If no better solution comes up, I have to solve the problem segment by segment.

Thanks again Jan

[janus2 · Accepted solution]

Hello!

I found a Solution here: https://forums.autodesk.com/t5/fusion-design-validate-document/rollercoaster-track-design-help/m-p/6...

Jan