Tutorial 4

This tutorial builds on tutorial 2, and will show you how to apply a pattern to a 3D surface and create an object based on the 2D pattern. Remember if you can’t find the tool icon, you can write it in the command line.

1. 2. In Rhino use the drawing curve in the front view.

3. 4. Copy and move the curve.

5. 6. Scale the copy curve down

7. 8. Loft the two curves

9.10 Select and move the curves and surface away from 0,0,0 point

11. Unroll the surface.

12. 13. Duplicate Border of the unrolled surface.

14. 15. 16. Rename the layers- see the image for names and colors

17. Open Grasshopper, and open the tutorial 2 grasshopper file. Right click on the R of the populate 2D battery and make a rectangle over the unrolled surface. Right click on the B of the voronoi battery and make a rectangle the same as the populate 2D battery. Right click on the curve battery, and select the duplicate border of the unrolled surface.

18. Create a Map to Surface battery.

19. Create two new surface batteries.

20. 21. 22. 23. Right click on a surface battery and set one surface as the unrolled surface. Right click on the other battery on set one surface as the 3D surface. Plug the first surface battery with the unrolled surface in to the S of the map to surface battery. Plug the surface with the 3D surface in to the T of the map to surface battery. Now plug the R into the C of the map to surface battery. Move whatever parameters you used to create your 2D pattern and see the 3D curves move)

24. 25. Bake the Map to Surface battery on the 3D curve layer (you should have made and renamed layer in step 14,15,16- if you didn’t do it now).

26. 27. Select all of the batteries in the grasshopper window and turn the preview off. Minimize the grasshopper window.

28. Select the Split tool, and select the 3D surface as the object to split.

29. Select the 3D curves as the cutting objects. Wait

30. 31 Select the pattern you’ve cut out of the surface and put it on the 3D object layer.

32. Turn off all the other layers by clicking the light bulbs by their color boxes.

33. Select the 3D object and select the offset surface tool.

34. The offset distance should be .5” and the solid=yes

35. Now try to do this with a surface you’ve captured in 123D catch.