Hi, I need to move the center point of a cube from the middle to the top left corner, then, when I want to rotate it, the object will rotate from that top left corner, my question is:
how to change this point from the center to the left corner?
Select the position you want to be the origin with the 3d curser. To position it at a vertex, select the vertex then Shift+S / Curser to Selection then in object mode go to the Editing (F9) / Mesh panel and select the ‘Center Curser’ button. (In blender 2.5 for the last bit use Ctr;+Alt+Shift+C / Origin to 3d curser)
As you haven’t said which blender version you are using I’ll assume the latest stable release, blender 2.49b http://www.screencast.com/users/blenderwho/folders/Jing/media/07d07d75-894b-49c6-b10e-797b4df67c07