This is a technical drawing of a practice part. For this exercise try to create the part exactly as possible. You'll only need the line, construction, circle, arc, dimensioning, and extrusion tools in Onshape to complete this practice. Once you get it right, try to make your own design!
This is a video tutorial of the practice part. It goes over some navigation, sketching, and extruding the part. There are no subtitles so set the audio to high.