[Funk Game Loop by Kevin MacLeod plays] [Liu Jin Xuan]: Once you understand the different views of orthographic projection, you are ready to draw them on paper. Usually no more than three views are needed to present an object. The main view drawn should show as many of the object’s visible features as directly as possible with as few hidden lines as possible. Looking at our object, we can see that the top view is the one that can show most of the object’s features with the fewest hidden lines. The right view is the next best view. Finally, either the front or the rear view would be about the same with what they could show. After analyzing the object for the best views and because of how the views relate to one another, we can decide that the top, front, and right views will be the best ones to draw. According to the way our box unfolds, we notice a poor arrangement of the unfolded right view because it crosses the title block and leaves an area of paper unused. To avoid this arrangement we can use an alternate arrangement for the right view by unfolding the right view away from the top view as shown here. This alternate arrangement is preferred because it makes better use of the drawing space. Begin drawing the views by deciding the drawing scale and the overall layout of the views. As before with the top view in the previous lesson, it seems that a one-to-one scale can be used. Locate the datum lines for each view, keeping in mind the relationship between the views and the space needed for dimensioning. Draw the top view as was done in the previous lesson. Now we can begin transferring dimensions from the top view into the front and the right views. In the front view height dimensions are measured directly. These two height dimensions are measured from the datum line and can be marked at the same time. This marks the two surfaces that are visible in the top view. At each of these marks draw a line that is parallel to the height datum line and extend it for a distance that is slightly wider than what is needed based on the top view. Now transfer all of the width dimensions from the top view into the front view by projecting each relevant point or line. Use this projection to draw each of the features in the front view. Be sure to use dashed lines for hidden features. Construct an auxiliary line to be used for projecting height dimensions from the front view into the right view. Then, transfer the height dimensions into the right view and draw these as lines that extend beyond the depth of the object. Now, transfer all of the depth dimensions from the top view into the right view by projecting each relevant point or line. Use these projections to draw each of the features in the right view and be sure to use dashed lines for the hidden features. After all the features of the object have been constructed in each of the three views, complete the line work by darkening the visible outlines and the hidden lines. Then, erase any lines that are not needed. Add the dimensions to your drawing and keep in mind that you do not need to repeat dimensions in more than one view. Placing the same dimensions between views is acceptable. Once dimensioning is complete, check your drawing surface for smudges or other stray lines that have not been removed, and erase these so that the open space of the drawing paper is as clean as possible. Remember that the drawing is not intended to be a final working drawing, so if a few stray lines or lettering guidelines remain, that is okay. Make sure that you also include information in the title block. Once that is done your drawing is complete. [Funk Game Loop by Kevin MacLeod plays]