Hello,
I am practicing right now. And a lot of time I faced with problems, often are solved by google and this forum. But at this time, in easy steps I stopped and can't get through it. Any suggestion will be appreciable. Thanks in advance.
then I got a lot of points after several tryings
And I would like to know about, why is points before cutting have different colours as in this picture?
And my main question why sometime cutting lines are not appearing, just points?