Homework Assignment 6.1 - Alpha Prototype

Firstly, I was unable to finish my refinement sketch for last week's assignment in time, but since I did finish it, I'm posting it here for reference:

And here is my alpha prototype:

As you can see, I'm using the same frame as I did with the initial prototype.  I chose to use the alpha stage to focus on the padded back and strap placement, as I felt the original CPVC frame got the point across well enough for testing purposes.  The beta version will be much more similar to the refinement sketch, with the additional diagonal supports and a change in construction materials.