llSetPrimitiveParams

Is there any way to change the scale of an object without "Stretching Both Sides"?

IE: A cube, has two faces x, 2 faces y, 2 faces z. I want to make a 1,1,1 cube be 10,1,1 but only move ONE face.

Scaling grows (or shrinks) the object equally in both directions. You will have to add half the amount you are increasing the scale by to the position to offset the object so that it appears one face remains in the same place. And to do both changes in a single operation, maybe use llSetPrimitiveParams.

As far as I know, you can't really move just one side as you were explaining. But you could fake it.

You'll have to use a llSetpos to move it 4.5(I believe) meters in the direction you'd want it to "stretch". May not be the exact solution you're looking for, as it'd jump a little. But the easiest way I can think of.

No, just put it inside the llSetPrimitiveParams call. Then you don't get jumps... it's the best way to combine rotations, scaling, and moving.

llSetPos(pos);
llSetScale(scale);
llSetRot(rot);
//okay

llSetPrimitiveParams([ PRIM_POSITION, pos,
                       PRIM_SIZE, scale,
                       PRIM_ROTATION, rot ]);
//much better