I will make hlical stairs to arround a tank, of course i must used, helix to path the rung & side plate and railing,For example used both diameter=8000 (upper and lower) turn high=1800 and turn=3The stairs will be around a tank, with 3 rotationThe problem is helix is not perfect, after i made helix the line is not in one line (when see on top view), it's problem when i attach railing is not precision.Anybody can help me? Or maybe the program autocad still not perfect?
ari7402011-08-12 09:49:07

You'll have to post a drawing so we can see what the problem is before suggesting a solution.