Hi guys,
Im trying to model some tunnel blocks along a path. Now I got a problem that when Im changing the length of one block in my excel file (from for example 10 Meters to 7 Meters) its not changing the length in the right direction . Has somebody a solution for that?
Thank you in advance! 
Hi again 
I did not really got what you meant by “changing in the right direction” 
Hi 
in the first Revit screenshot both blocks have the same length of 10 Meters.
But for example I want the second block to have the length of 7 Meters. So I changed that in the excel.
The length difference of old and new should be 3 Meters. And I want that Dynamo reduces the length into the direction of the first block.
I hope you know what i mean
Hi,
I don’t know what’s happening in your graph, also because it’s not complete, but if you want to place a 2-Point-Adaptive Family on a curve, the workflow is way easier:
Of course you need to have a correct excel input and remember to use Cross Product Lacing for the nodes Curve.PointAtSegmentLenght 
thank you @lucamanzoni That made it much more easier
The help in this forum is very appreciated!
How do you build this tunnel. Can you shared the dynamo script ? Thank you !
very interesting could you share the files?
Thank you
