alignment

I am learning about assemblies but I can't figure out from the interface how to align parts in an assembly. I am essentially joining extruded triangles with rounded corners. I have three triangles on one side and four facing triangles on the other side. The "points" of the triangles of one side are facing the points on the…

i understand the male thread but i don't quite understand how to do a top down design scenario of a female thread yet. i wish to have two parts screw together and align on a thread in the same place. multiple different ends will be screwed on and i wish them to all fit tight on the same axis. i tried starting with a male…

When I built this assembly, I was careful to fix the frame with respect to the origin and align it with the XYZ axes before using mates to add literally hundreds of other parts and sub-assemblies. However, somehow, it is now rotated a fraction of a degree about the Z axis and displaced 100 mm or so from the origin. The…