6:51 PM, Thursday March 21st 2024
Jumping right in with the cylinders around arbitrary minor axes, I'm not sure I follow your numbering scheme here, so I'm working under the assumption that the album is indeed in order. Imgur isn't the most reliable when it comes to the ordering of images (we still prefer it for other reasons), so it is important to ensure you're using a standard numbering scheme to avoid confusion.
Aside from that, your work on these cylinders is looking solid. Your ellipses are confidently executed - although I did notice that you tend not to draw through your ellipses two full times, which is still required for every ellipse we freehand throughout this course as noted back in Lesson 1 - but as a whole, they're still very well drawn. I'm also pleased to see that you were fastidious in checking the alignment of your ellipses' minor axes, catching not only the obvious mistakes but also those discrepancies that could easily be overlooked. Lastly, I noticed that alongside varying your rate of foreshortening throughout the set, you were mindful of maintaining a consistent relationship between the two manifestations of that foreshortening - the shift in scale and the shift in degree from one ellipse to the other. You ensured that as one such shift was pushed towards being more dramatic, the other matched it, which helped to avoid cases that would look "off" to the viewer (even though they wouldn't necessarily understand why).
Carrying onto your cylinders in boxes, I'm glad to see that you switched to a more standard numbering scheme, and that you shifted to uploading complete pages rather than close crops. This definitely makes the feedback process easier.
As a whole these are similarly well done, although I noticed that due to your not drawing through your ellipses (which I noted above), you did run into more issues in getting your ellipses to fit snugly within their enclosing plane, which likely would have been easier with the second pass of the shape.
This exercise is really all about helping develop students' understanding of how to construct boxes which feature two opposite faces which are proportionally square, regardless of how the form is oriented in space. We do this not by memorizing every possible configuration, but rather by continuing to develop your subconscious understanding of space through repetition, and through analysis (by way of the line extensions).
Where the box challenge's line extensions helped to develop a stronger sense of how to achieve more consistent convergences in our lines, here we add three more lines for each ellipse: the minor axis, and the two contact point lines. In checking how far off these are from converging towards the box's own vanishing points, we can see how far off we were from having the ellipse represent a circle in 3D space, and in turn how far off we were from having the plane that encloses it from representing a square.
As a whole you did this quite well, although in cases where the ellipses don't quite fit snugly, it does reduce how accurately the ellipse and its own extension lines describe the plane in question. This is an issue that'll occur to some degree anyway, since we're not perfect machines and it's natural to have issues fitting the ellipse correctly, but in this case being sure to draw through all of your freehanded ellipses going forward will help mitigate this through process, rather than simply requiring more mileage and practice.
Anyway, all in all, very solid work. I'll go ahead and mark this challenge as complete.
Next Steps:
Move onto Lesson 6.