[AUTOCAD712]

New to Gibbscam. Using 2016. What I am attempting to do is to revolve some geometry that I have imported from AutoCAD LT 2017. The part is cylindrical. I am able to select the geometry on the imported drawing and "Revolve" it, creating a single solid cylindrical object that looks pretty close. My issue is that I don't know how to create the part with an inside diameter also, as opposed to it being a complete solid. I would like, when I "Revolve", for the inside diameter to be established as well as the outside. Im fairly certain that there is something that I am not doin correctly. Any help would be appreciated.

[bostosh]

If you have solids just define the circle which represents the bore and extrude thru to remove it.

[AUTOCAD712]

Thank you Bostosh. Would I able to accomplish ID threads using a similar method?

[bostosh]

Do the tap drill thru then,
I go to a CAD site which has the bolt and fasteners CAD modeled,
and download the solid then subtract it from you other model.
Are you doing single point threading or ? do you need a specific thread size?