Is there a way to flatten this part so it can be cnc cut wth the holes in the proper locations?
select one of the virtical edges of the cylinder and and use sheet metal, insert bends and then hit the flatten button.
now you may have to play with the K-factor as it stretches or shrinks the flat pattern as metel stretches during forming, may be ok for this at .5 ansd as it is rolled may not change size.
read the help file on how to do this.
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