Quote Originally Posted by fred_dot_u View Post
** Please confirm that the 3/8 dimension is meaningless?
This dimension is the distance from the bottom left inner corner, to the top right of the bottom left standoff. Sort of a double check during my SketchUp work to verify that the measurement for both sides is the same.

** Another meaningless dimension?
Again just a double check for accurate measurements.

** Does the 3/16 center notation in the lower left corner mean that the hole is to be 3/16 inches diameter? I hope it's not that large, because that leaves a too-thin wall on the standoff, a thirty-second of an inch at the very edges.
3/16 is the distance from the bottom left inner corner to the center of the standoff. Another double-check during SketchUp work.

** The upper left standoffs have most of the necessary information, but in this case, it's missing the x-delta and the y-delta figures. Again, it should be referenced from the bottom and from the left, but if you provide it from the top and from the left, I'll do the math.
In Fig. B: the dotted lines just intersect for the final standoff location. Same as Fig. O.

** Can you clarify the note to the far right of the drawing, "standoff inner = 1/4, center 3/8 from inner corner" ? To which standoff(s) does this apply? One typically does not measure on a diagonal, so I would not apply it to the dotted diagonal lines in the corners. If this is a reference to holes in the right side standoffs, it's peculiar, as one would simply center the holes in the square cross-section.
Another double check: from top/bottom respective inner corners to center of the standoffs. SketchUp camera views arent great even when i can control em lol.

It may be double work, but any time i do measurements i measure more than 2 or 3 angles to verify points are correctly plotted.