Newbie questions. I have a cylinder from an imported mesh as pictured that has some ledges along the vertical perimeter. I want to carve away the blue ledge. I see I can do that with rectangle and revolve.
1. Is there a way to get the dimension of ledge so as to define the rectangle accurately?
2. Are there other free hand tools for cutting pieces away from a fixed object?
.stl files contain triangulated meshes. That isn't CAD native geometry. For such simple designs it is best to use them as a visual reference only and design them from scratch with the native tools in Fusion 360.
If you use a paid subscription you can also use the prismatic conversion in the mesh workspace.
In general I personally would consider downloading .stl files for modification one of the worst ways to learn Fusion 360.
1-the inspect tool will give you measurements. some accuracy is lost on circles b/c it's not an actual a circle anymore (bunch of short segments), so how good your measurement is will be dependent on how good your select points to measure from are.
measuring from flat to flat can be very accurate if they line up with the ordinate planes-
and I suppose your could do a mesh section and fit a curve to it to, which can be fairly accurate also
2-anything tool that can create a solid can be used as a tool to remove material also. I don't know what you mean by "free hand", fusion's not a particularly free hand type of modeler.
