Model a terrain map with SketchUp, cut it up in Slicer for Fusion 360, check the dxf files for flaws with AutoCAD, then send it to Ponoko to cut the pieces. Also download and install extensions from SketchUCation and the Extension Warehouse.
Drafting, Modeling and 3D Printing with Lydia Sloan Cline
Hand drafting for Interior Design, SketchUp, Autodesk 123D and MakerBot