This is one those models that requires a little of trick to translate from 3dsMax to Wings3D. I took me five tries until I find the workflow.
Check out the original tutorial and make your try.
Result of Schoen's Batwing Surface | 3dsMax by @Luxxeon 3D

![[Image: Schoens-Batwing-Surface-1024x576.png]](https://i.postimg.cc/nrgKy3QX/Schoens-Batwing-Surface-1024x576.png)
Rendered in Kerkythea Echo Boost Edition v2.5.2 Windows 64bit (Metropolis Light Transport-BPT - 2:32')
Check out the original tutorial and make your try.

Result of Schoen's Batwing Surface | 3dsMax by @Luxxeon 3D

![[Image: Schoens-Batwing-Surface-1024x576.png]](https://i.postimg.cc/nrgKy3QX/Schoens-Batwing-Surface-1024x576.png)
Rendered in Kerkythea Echo Boost Edition v2.5.2 Windows 64bit (Metropolis Light Transport-BPT - 2:32')