Glad to see that my design is helping with your Z-Axis setup. I actually quite like how you’ve run the collection chute, to avoid your C-beam. I did a lot of work myself to make sure that the chute would nest right under my rails and lead screw, but I like how you worked around the problem here. Keep up the good work! 
I will need to do some more testing on my own design, but I do run into issues with the plexiglass window I may also make mine from triangles, like you have.