Pattern Exercise 3

For this exercise you will be reconstructing a pattern using previously researched patterns. The pattern will be constructed in 2D and 3D.

Objectives/Outcomes and Assessment Criteria

Students will acquire and demonstrate: 1.) technical competency in working with basic drawing tools and arrays, 2.) sense of craft through precision and care in the presentation of the work, 3.) observational skills in reconstructing a pattern. and 4.) problem solving skills in constructing a three-dimensional pattern. 

Steps

P.3.1. The first step is to go to the folder where you uploaded patterns and choose a pattern to draw. Choose a pattern that you did not upload. Choose one that a classmate uploaded. Here's a link to the folder. Uploaded patterns.  Choose a pattern that has a clear repeat. The repeat can be rows and columns or it can be circular and arranged around a center point. If you find a pattern that you like, but you aren't sure whether it has a repeat, just ask.

P.3.2. Download the pattern.  Rename it Pattern 3.

P.3.3. Make a new file by making a copy of your titleblock. Name the file with your last name followed by your first name followed by Pattern3. 

P.3.4. Create new layers as described below:

Layer name, Non-print; color, any color between 11-249, set this layer to not print

Layer name, Pattern-2D; color, 7

Layer name, Pattern-3D; color, any color between 11-249

P.3.5. Set your current layer to Non-print.

P.3.6. Determine what is the smallest repeating pattern. In the image shown below, the repeating pattern has been identified with an orange square. 

P.3.7. For rectangular arrays draw a square or rectangle that represents the extent of the smallest repeating pattern as shown with the orange squares above. Work with common decimal numbers like 1.25 instead of 1.2567. If you are working with a polar array, draw a pie shaped area that represents the repeat, and keep in mind that the angle of the pie would be 360 degrees divided by the number of repeats around the circle. 

P.3.8. Set your current layer to Pattern-2D.

P.3.9. Draw the smallest repeating pattern. Focus on the geometric structure.

P.3.10. Array the pattern so that it is 7 x 7 or greater. Below you can see three phases of the process. On the left is a drawing made to understand the geometry. In the middle is one module. On the right is the completed array.

P.3.11.  In your titleblock fill the viewport with the new pattern. Allow the pattern to extend beyond the borders of the viewport. Change the title to Pattern 3 - 2D. Change the layout tab too.

P.3.12. Create a pdf of the layout. Make sure that ccc.ctb is in its proper folder. Name the pdf with your name followed by Pattern3-2D.

3D

P.3.13. Return to model space. You will be making a three-dimensional pattern using the pattern you drew in 2D. 

P.3.14. Make a copy of your pattern to the side. Switch your Workspace to 3D Modeling. 

P.3.15. Set your current layer to Pattern-3D. 

P.3.16. If your pattern was a rectangular array you made a square or rectangle that represented the limits of one module. If you used a circular pattern, you made a pie shape. Trace that shape. Join the lines if they are not already. Extrude the shape. The depth of your extrusion should be about 1/8" or 1/4". That will be your base. In the image below the extrusion was made downward so the pattern is on top. 

P.3.17. Use the lines and arcs that you generated in 2D to construct shapes. Extrude the shapes. Either add them to the base or subtract them from the base. You will end up with a surface that has objects on top of it and holes cut through it. The image below shows the the forms before and after volumes were subtracted and unioned.

P.3.18. Array the pattern.

P.3.19. Create another layout with a title block. Name the layout tab and title Pattern 3 - 3D. 

P.3.20. Enter the viewport, zoom into the 3D pattern. Set the visual style to Conceptual

P.3.21. Create a pdf. Name the pdf with your name followed by Pattern-3D-Conceptual.

P.3.22. Change the visual style to one of the other presets. Create another pdf and name it accordingly. 

P.3.23. Change the visual style one more time and create a pdf.

P.3.24. Save and close your AutoCAD file.

P.3.25. Files to upload

• The AutoCAD drawing file
• Original pattern used for the project. It should have been named Pattern 3. 
• Four pdf files. One for the 2D work and three for the 3D work.

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