Yazzo Servo Side Shelf Mount

I have need to mount a servo onto a shelf facing sideways.

This thing will allow you to put a servo into a snugly fitting sleeve, and then slide that sleeve onto a shelf.

The OpenScad will let you play with the sizes, including an offset which is used to specify the height of the mount (0 would be flush with the shelf).

I took my measurements from this servo from AdaFruit: http://www.adafruit.com/index.php?main_page=product_info&cPath=34&products_id=155

I think it's a fairly standard