Well here is a walker that I built it is not that good but am posting it because There is a contest for biggest walker and this walker is fairly big.
The hight is about 6 in. the width is a little over a foot, and the length is about 7 in.
Hope you Enjoy!
Step 1: The Middle Section
Step 2: Leg Attachments
Step 3: The Motors
Step 4: The Outer Box
Step 5: Assembly
Step 6: Done!
Have fun! Feel free to comment about anything.
Step 7: Video!
In about the middle of the video the walker stops for about a second that is my fault, you will not have that problem. http://youtube.com/watch?v=6rE3oUV7-sc