Hi Lara,

re:
> Ok - i got problems with the 3-axis-cnc machine where I intend to produce the ring.
> The idea is to make it with a polyline of the font. I created it. But...I cannot bend it on
> the surface. Is it possible that polylines cannot be formed on a bended plane?

You can use Flow in either "curve to curve" mode where you have a base line and a target curve (both being curve objects, no surfaces), or "surface to surface" mode where you have a base plane and a target surface (both being surface objects).

It looks like you're trying to go from a base curve but your target is a surface and not another curve?

For applying onto a surface you will need to use surface to surface mode which means you will need to make a base plane instead of a line.

If you're still stuck please post the .3dm model file that corresponds to the screenshot.

- Michael