Yes now edges look clean, but my corners still look like they are compressed.. If i had a X Fixed size to the Planche02_start, i can now play with the value to avoid the bad corner, but in others side the corner on Z axis have the same issue. I have to play with the Z Size value i set, but it's to much work for adjusting, for at the end don't have the original shape. So maybe i have to look for divide the start in 3 parts, and drive the middle segment size by arthmetic node. I'm not really sure i say right now, i need to test for see..