a simple library for hollow objects in openSCAD.

parameters:

bbox should be bigger than the shape to shell.

default bbox is 2000 in size centered at origin.

shell(dir,bbox)...:

• dir: -1=inner only 0=symmetrical 1=outer only

• bbox: [[min_x,min_y,min_z],[max_x,max_y,max_z]] shell2d(dir,bbox)...:

• dir: -1=inner only 0=symmetrical 1=outer only

• bbox: [[min_x,min_y],[max_x,max_y]] usage:

  3d:
  shell(...)
  {
  //object to shell
  //shape of wall (like minkowski)
  }

  2d:
  shell2d(...)
  {
  //shape to shell
  //shape of wall (like minkowski)
  }

Category: 3D Printing