Orienting items without distortion

Can someone show me how to orient this string of objects perpendicular to the surface without any distortion to the original form? I am having trouble using FlowAlongSrf…

Thank you

orient perpendicular to surface- FORUM.3dm (972.1 KB)

Have you tried the Rigid option? But make sure to Ungroup the input first, or it will treat the whole group as one ‘item.’

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thank you so much… the issue was the string of objects being grouped together. I really appreciate it!