Introduction to Day 27
Today, under Warm up, we do a quick recap of Workouts in all sessions, upto Day 26.
Under Workouts, we learn to draw all kinds of strip forms, and even try writing our own name on a complex strip form!
Under Sense of Perspective Space, we learn to draw an optical mouse, an example of a compound form composed of free curves in perspective. 

Preparation:
• Download and Print:
1. D27_strip-form-reflected-on-rotated-mirror-planes-worksheet
2. D27_strip-form-reflected-on-rotated-mirror-planes-solution-(a)-sheet
3. D27_strip-form-reflected-on-rotated-mirror-planes-solution-(b)-sheet
4. D27_optical-mouse-worksheet
5. D27_optical-mouse-solution-sheet
• Large rough sheets of paper and soft pencils for the Warm ups.
• Tracing sheets for workouts.
• Do NOT use erasers.
• Music - say, your favorite playlist featuring a lot of variety in speed and rhythm in terms of sound tracks, for workouts.

Overall Time Plan:
• Warm up      : 15 mins. 
• Workout       : 60 mins. 
• Sense of Perspective Space   : 90 mins.

Warm up

15 minute Exercise:

0-5 mins   : Practice very fast hand and body movements while drawing Horizontal, Vertical and Inclined Lines, Curvatures, Radial Lines and Rings, followed by various Sinuous Lines and Springs.
5-10 mins : Now, repeat the various workouts covered in Session-1-5, i.e. upto previous day WITHOUT the underlay grids and WITHOUT LOOKING! As a warm up exercise, the focus must be on maintaining correct hand and body movement while drawing the lines fluently.
                   While drawing these, remember to:
                   1. Draw them for various lengths, diameters and radii.
                   2. Draw lines in either direction and curvatures, both clockwise and anti-clockwise.
                   3. Draw them at various pace - fast, slow, fast to slow in a single line, etc.
                   This practice of initially drawing the lines fast and then slowing down will help your body get into smoother drawing action for the workouts and perspective exercises ahead.
10-15 mins: Try repeating the exercises you did in this session of Strip Forms and Lettering using a different drawing tool (say a paintbrush or felt pen) for the last 5 minutes.

<Warm up Ends>

Workout
1. Aim:
To draw curved surfaces, such as strip forms in perspective accurately.

2. Set up:
Printouts:
1. D27_strip-form-reflected-on-rotated-mirror-planes-worksheet
2. D27_strip-form-reflected-on-rotated-mirror-planes-solution-(a)-sheet
3. D27_strip-form-reflected-on-rotated-mirror-planes-solution-(b)-sheet

27.1) Strip Form reflected on rotated mirror planes - 15 mins - 2 solutions
This is a tough one! Observe the strip form that just touches the transparent plane.
You are required to draw its reflection behind the following rotated mirror planes:
(a) yellow mirror plane - towards side (a), and
(b) green mirror plane - towards side (b), as specified in the following diagram:

Compare your drawings by overlaying on correctly printed solution sheet provided. [Download...Stripform in Orientation(a)_Solution; Stripform in Orientation(b)_Solution]

27.2) Lettering on Strip form in Perspective - 15 mins - 2 solutions
Using yesterday's worksheet, now write 'CAP' on the solution stripform on (a) and (b) Overlay on correctly printed solution sheets and compare for accuracy. [Download...Solution]

Challenge: Try writing your own name on a complex stripform of your choice!

< Workout Ends >

Sense of Perspective Space
Discussion: Drawing a Compound Form with Curved Sections
The best way to draw compound forms is to develop a perspective grid on which the curves can be plotted from one or more scale drawings. An object composed of free curves in more than one plane requires a complex grid in three dimensions. The final outline is usually traced on a grid made by superimposing horizontal onto vertical sections. Often, only a few curves need be plotted accurately and the rest can be filled in by eye. (Jay Doblin, pg 44)

1. Aim: Drawing a Compound Form with Curved Sections: Optical Mouse

2. Set up:
Tracing sheets, measuring ruler.

3. Exercise:
Provided below is the Plan and 2 Side Elevations of an Optical Mouse [Download...D27_optical-mouse-worksheet]. Work with successive sections along the longer side, taking height references from the side elevation provided to achieve an accurate sketch.

Image 27.3: Optical Mouse Worksheet

4. Review:
Compare your drawing by overlaying it on a correctly printed version of the solution provided. [Download...D27_optical-mouse-solution-sheet]

< Sense of Perspective Space and Day 27 End >