bjr Attached is 1 SW file from a dev of a tendril, on this tendril is/are fixed other parts via drillings, question; How to copy these holes at an interval of 180mm along the construction line with several occurrences? 1v. SLDPRT (120.5 KB) dev 1.SLDPRT (50.4 KB)
Below is a proposal in " Sheet metal" mode from the start, in the 2020 version. The intermediate flattening in principle gives circular contours with the same center, but they are not positioned on the axis of the initial helices. It is therefore necessary to find the center by a construction in Sketch7 of an arc passing through 3 points (in the construction line).
Then the holes are generated by extrusion, via a basic circular repetition in the same Sketch7. Simply remove the repetition angle and replace it with the centre distance to respect the 180 mm distance.