how build helicoid surface?
Want to build good surface.
angle of spiral 45 deg
band width - 100 mm
my wrong model heli|coid surface
From your model I could not really tell what the desired shape was.
Looking for Helicoids online, there are many images: https://www.google.com/search?as_st=y&tbm=isch&sa=1&q=helicoid
I have a feeling this model differs quite a bit from yours, so it could be wrong.
Do you have an image or sketch of what the final shape should look like?