Attempting to follow the SketchUp Skill Builder: youtube instruction but it fails for me when I get to end of part 1, scaling about center, it does not come out symmetrical.
This is before exploding and scaling:
screw2.skp (56.0 KB)
And this is what I get:
screw3.skp (240.8 KB)
I’ve always had problems scaling about the center, S, Ctrl+Click grip type .70.