Robo 3D Printer Y Axis Upgrade

This is an Upgrade for the Y axis on a ROBO 3D printer. (Kick-starter version)
I made this upgrade because the original Y-Axis used drawer sliders and would jam up on a regular basis.

I currently have about 11" of Y-Axis movement using 24" rods. I was able to reuse the belting from the original Y-Axis. I plan on using some 48" long rods to give me ~23" of movement.

I used the following parts from McMastercarr
60595K73 : 1/2" Linear Ball Bearing
1346K18: 1/2" Steel Shaft 24" Long.