Hi,
1. I really have to know how to cut an object into 2 separated objects. I didn't find explanation on the internet. Could you explain me how to do this please ?
2. How to link the vertices 1 to 3 (instead of 1 to 2) with a perfect alignment with the axis 1-4 ? The vertice number 3 doesn't exist yet.
3. I also would like to cut all the edges at the exact location of the red arrow I have drawn on the picture. How to do this ?