Revit split line function in Dynamo

I don’t believe this exists - if it does it’s a custom node in a package I don’t have much experience with. Instead, try this:

  1. Find the line in Dynamo
  2. Find the intersecting point.
  3. Split the line at that point - you should now have two lines in Dynamo.
  4. Set the location of the pipe to the first line in the list.
  5. Create a new pipe along the second line.

Several example threads exist on this, but I prefer this one: Split Geometry At a given length - #4