I did not post pictures before. Here they are(turn your head to the left 90 degrees for second). Notice that the Yun has the two big ports, you can't just attach the steppers controller. Other then that its a straight drop in.

- photo 2 (1).JPG (38.26 KiB) Viewed 3266 times

- photo 1 (1).JPG (44.78 KiB) Viewed 3266 times