This is a removable clip that you can encorporate into your designs to mount something to your MakerBot.
Please Note: It attaches to the horizontal, top, SIDE, beam of the Makerbot Replicator (5th Gen) and is capable of carrying a small load, such as a phone. For example, I crazy glued this piece to a modified phone case for my Note 3, so that I could take timelapse photos.
Cannot be used to mount from the front.

No need for rafts or supports. Just download and print on blue tape.
To mount, simply put the big hook on the inside lip, and pull back until you can snap the small hook into the seam (between the top of the chassis and the side). See other photo for sample use, where I crazy glued it at an angle to a Galaxy Note 3 holder.