Small ejmplo of using variables with SketchUp. The switch ( "i", "o") starts or propulsion The "potentiometer regulates power thruster. (Min dark green, black max)
STL (Stereolithography, filesize: 9.45 KB), OBJ (OBJ, filesize: 11.3 KB), 3DS (3D Studio, filesize: 6.73 KB), FBX (Autodesk FBX, filesize: 29.2 KB), IGE (IGES, filesize: 300 Bytes), MAX (Autodesk 3ds Max, filesize: 25.7 KB), SKP (Sketchup, filesize: 51.8 KB), OTHER (Other, filesize: 3.81 KB)