I created this part to allow a command strip to be attached to the back. It is sized for a Large command strip. I know this piece may come in the future officially, and I will remove this when it does. I needed something ASAP to get my board up and hope this can help someone else.
It is flat on the back, and one large command strip will hold it well. I cut up 2 to get rid of the little wobble having one on the back will create. This is 1mm shorter than the original to give room for the command strip, it evens out with the standard 8 mm Offset Snaps.
Printing Guidelines: The printing orientation is as provided in the file. The print has been designed to be “3 wall perimeters” in wall thickness. Printed at a layout height of 0.2 mm. It doesn't need printing support. Use the default 15% infill. This part has been designed with a tolerance of 0.25 mm.
Use the standard Cross Quad Snap Connector - DS Part B