Class 25: Dashing with the Stars Part 2B

Method 2B: Divide Path + 3 Points Adaptive Component

Building the Leg

  1. Start with a Generic Model Adaptive template.
  2. Place a point at the center of the template.
  3. Place another point at a distance from the first point.
  4. Make both points adaptive with the point at the center numbered 1 and the other point numbered 2.2-POINTS
  5. Draw a reference line from point 1 to point 2 (use 3 D snapping).LINE
  6. Place a point on the reference line.POINT-AT-LINE
  7. Select the point, in the properties box, under Dimensions, Measured From, select “End”.
  8. Under Dimensions, Normalized Curve Parameter, associate the value with parameter r.
  9. Set work plane by selecting YZ plane of the point.PLANE-AT-POINT
  10. Place a reference point on the reference point.
  11. Select the new reference point, in the properties box,  input an offset value (under Dimensions).  Associate the offset with parameter X1.POINT-OFFSET1
  12. Place another reference point on the point hosed by the reference line.
  13. Select the new reference point, in the properties box,  input a negative offset value (under Dimensions).  Associate the offset with parameter X2.POINT-OFFSET2
  14. In Family Editor, make X2 = -X1
  15. Set work plane by selecting XY plane of the point 2.PLANE-AT-POINT2
  16. Place a reference point on point 2.
  17. Move the new reference point above point 2.POINT-OFFSET3
  18. Make the point adaptive as point 3.3-POINTS
  19. Create angle parameters A and B, input arbitrary values for A and B.
  20. With this diagram of trigonometry relationship, r is expressed in term of A and B.TRIANGLE-FORMULA
  21. In Family Editor, equate r = tan(B)/(tan(A) + tan(B))
  22. Join all the points to point 3 with model lines with 3D snapping.LINE-JOIN-POINTS
  23. Select any 3 adjacent edges and cretae form to make a face.FACE
  24. Create all the faces to make a pyramid.PYRAMID

Dividing the Path

  1. Start another family with Generic Model Adaptive template.
  2. Place a reference point at the center of the template
  3. Draw a reference circle centered at the reference point.
  4. Dimension the radius of the circle and make parameter L.
  5. Set work plane by selecting the XY plane of the reference point at the center.
  6. Place another reference point on the center reference point.
  7. Select the new reference point, in the properties box,  input an offset value (under Dimensions).  Associate the offset with parameter H
  8. Select the reference circle and divide path.
  9. Select the divided path, under properties box, associate “Number” (under Nodes) with parameter N.PATH-DIVIDE
  10. Create parameter A (angle) and equate A = 360/N
  11. Create parameter B (angle).

Placing the Leg on the Path

  1. Nest the leg family to the path family.
  2. Select the leg family and associate its parameters L, A, B with  parameters L, A, B  in the path family.
  3. Place a leg, adapt its placement points 1, 2 and 3 (Placement: Place on Face) to a node, the center point and then the point above the center.LEG-ADAPT
  4. Select the leg instance and Repeat.REPEAT

To be continued…

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s