'where / what? Need to correct it '
Point of contact between the kit part hand crank at the 3D support. The kit part angles upward from the point of contact at the 3d support outward toward the end of the hand crank. You can tell by, well, just looking at it. Another reference is the styrene rod. The styrene rod is straight. A straight line should run thru the hand crank and be parallel to the line of the styrene rod. It doesn't appear to be so to me.
If you want a better look, and if you are using Windows on your computer, put a left finger on the Cntrl button of your keyboard, and scroll the mouse wheel forward to enlarge.
Like I say. Not a criticism. Just an observation.