Place Beam rebar by vector

Revit
1

Hi everyone.
I am learning dynamo for revit. I want to place stirrup for beam. But it is error.
Step 1: I place a stirrup.
Step 2: I copy this stirrup to 3 location: 0.25-0.5-0.75 by use edge beam
Step 3: I use node: Rebar.SetLayoutAsMaximumSpacing to change single rebar to layout.
But it dont understand which direction to put.
How can i repair this error.
Thank so much

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Can anyone help me?
Thank so much

4

@bao1296
Please post your dyn and revit file or a link to them

5

Revit file: https://drive.google.com/file/d/1OyuEUHpHygrCoBKtO-qhhA72KbZDL2TG/view?usp=sharing
Dyn file: https://drive.google.com/file/d/15J3dgSs03OZfiHReqhxJoakm5L4vgYvB/view?usp=sharing

Thank you so much :kissing_smiling_eyes::kissing_smiling_eyes::kissing_smiling_eyes: