A key part of mechanical design is to evaluate your designs after fabrication. How precisely are you realizing the designs you have in software? In this lesson we learn how to use digital calipers to evaluate our physical model. In order to do this lesson you need a good set of digital calipers, which you can get HERE.
In this video lesson we describe how to print designs from Sketchup on a 3D printer. Key thing is you need to go to the sketchup Extension Warehouse, under the window tab in scketchup. Then you need to search for and install the .STL Export extension. With this extension, you can export your design file as an .stl file. Then you can load the .stl file into your slicer software to generate the gcode for the printer. I found that it is very straightforward to go from sketchup to the 3D printer.