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Repeating a feature around a surface

I'm trying to model some caterpillar tracks for a toy digger to 3d print in TPU. I've made the track itself with the belt feature using some cylinders to give the correct spacing for the wheels.
Is there a simple way of repeating the little semicircular feature equally around the outer surface of the track so I can give it some ridges?
I've been unable to get revolve or wrap to work - think these might be the wrong tool for the job.
Thanks!
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Comments
Curve pattern
Have you tried the "curve pattern" feature?