i started to try modeling some pipes, but i'm stucked about subdividing them (the base pipes) as the pictures shown down.
i tried with adding a cylinder, then with a bezier curve then bevel by a circle, any ideas
you want the pipe to branch off into the many pipes? I would try Boolean (union) a cluster of solid pipes (I used subdivided cubes) . Make sure the verts are aligned before you union. Delete the unwanted faces then select the verts on one end and use the circle command to round them out. extrude then use the spin tool to add the elbow. apply subdivide to taste. steps from right to left.