Thankyou that worked great for leaving the rails behind but now how do i eleminate the lines left behind on my surface?

Instead of soapskin I added another rail and now I like the profile now I would like to eleminate the lines any ideas how? this is what I have.

plane skinning 3.skp

Thank you Tig for all of your help. With that way it looks like the profile is round and the lines i have now denote the form of the skin to curve so that it gives more head room.

Eebyrails is great but leaves a weird bump and i dont know how to fix it.

Ok I am trying to use soap bubble on the tale of my model and it says that the 4 lines im picking are not in a closed group? Any reason? I dont see any thing wrong.plane skinning.skp

hi all I tried to use the weld tool and it seams to not work. I click the 2 lines and click weld it ask's if I want to close the curve and draws some lines but it doesnt make the polyline one line.

How would i skin this. Ive tried lots of things with no avail. Im using curveloft

plane skinning.skp

is it possable to use a google satellite shot? I tried to save as an image but sketchup wont load it. i want to trace it to bid a concrete job im helping with.

Ok now i have my 4 groups extruded by rails how do i combine into one group eliminate the lines between groups and smooth? Im just getting lazy now that you are all so helpful and guide me strait to the right operation but im learning lots thanks.

You rock, thanks that got it.