The following image shows the layout of the pedal roller board. The pipes shown are CC-C#. Pipes CCC-BBB and D-F will be mounted off of the windchest.

For the rollers, I used aluminum tubing with a .500" OD and a .375" ID. Here's a photo of the end of a roller. I plugged the end with a wood dowel and used a Ø.062" dowel pin as the axel. The roller arms are attached with a screw and epoxy.

Here's a photo of some of the rollers waiting for the epoxy to cure:

The roller stands are just blocks of wood with a clearance hole for the roller axel. They are held in place with a screw that comes up from the bottom of the roller board. I placed a felt disc between the roller and roller stand to prevent hard surfaces from touching and making noise.

Here's what a roller stand looks like assembled:

The aluminum tubing only came in 3 foot lengths but seven of the rollers needed to be longer than 3 feet so I spliced two pieces together. I inserted a solid piece of Ø.375" aluminum half way into each piece of tubing. Then I drilled and installed three Ø.062" roll pins in each side. This method made for a slop free joint that kept the two pieces very straight.

Here's a photo of the CC# roller:

Here are some photos of the complete roller board. The notches along the front side are for the squares that the pedal board will connect to. The open space on the back side is for the pedal windchest to sit on.