Novice - help needed with spiral ramp

[Anonymous]

Hi, I have not used AutoCAD before, my sole 3D modelling experience to date is TinkerCAD. Wondering if anyone can advise on which AutoCAD package I would need and how to go about the below?

I need to create a ramp that only proceeds a single "level" around a circle, but the whole ramp must touch the surface. Imagine a partial ring (about 1cm gap between start and end) where the start is level with the surface, then the height increases around the ring until the other end is ~1cm tall. I would need to be able to adjust the width of the ring, radius of the circle and start/end heights to fine-tune for the eventual 3D print. 

Googling about, I found this conversation on AutoDesk forums that shows the type of ramp I need... how would I go about creating/modifying this in AutoCAD if I get the free trial (and does the trial allow exporting to .STL or .OBJ)?

https://forums.autodesk.com/t5/revit-architecture-forum/the-length-of-ramp/td-p/5686036

Thanks,

MH

[S.Faris]

Draw a Helix, extrude a rectangle using path(helix). then you can easily adjust the grips of the initial rectangle and the path.

A Sample file is attached.

There are many videos on Youtube for you to refer.

[Anonymous]

Thanks - can this be done in basic AutoCAD or do I need a specific package? And does the free trial allow exporting of the model to 3D printer?

[S.Faris]

can this be done in basic AutoCAD or do I need a specific package? 

Yes it can be done with Autocad, But not Autocad LT, LT doesn't have the 3D functions available.

And does the free trial allow exporting of the model to 3D printer?

Yes Once you are done with the model, you can use STLOUT Command to export the file to STL format which then can be used for 3D Printing