Hello, I would like to make a frame with a rounded profile. I used a rectangle, I created arcs for the corners, but I can’t manage to make the left and right sides rounded (bulged). I’m thinking I should merge a cylinder with my frame, but I don’t know how to do it…
I’m a beginner, so thank you for your valuable advice!
Have a look at using the Follow Me tool.
It’s possible that your model is only a few millimeters in size.
Yes it’s just 3cm 
I found a solution, but thank you very much for your help