1. CADjs Tips for Accelerating CADjs

2. Complex Geometry
More Triangles  Slower CAD

3. Tip 1: Start with Coarse Model
5 seconds
20 seconds

4. Tip 2: Choose primitives carefully
Cube: 12 triangles
Cylinder
Sphere

5. Tip 3: Merge versus Union
H = 0.25;
r = 0.1;
h = 0.55;
s = 0.8;
pin = cylinder(r,h).translateY(H/2+h/2).translateX(s);
N = 8; // number of pins
pins = pin.clone();
for (i = 0; i < N; i++) {
pin = pin.rotateY(360/N);
pins = pins.union(pin); }
base = cylinder(R,H);
base = base.union(pins);
base.display();

6. Exercise Modify your code to handle N pins N = 3 pins N = 6 pins

7. Exercise R = 1.0; H = 0.25; A = cylinder(R,H); r = 0.1; h = 0.5;
pin = cylinder(r,h).translateY(H/2+h/2).translateX(s);
N = 8; // number of pins
for (i = 0; i < N; i++) {
A = A.union(pin);
pin = pin.rotateY(360/N); }
A.display();