A Better Roll-Out Tray
Side-mount ball-bearing drawer slides work great. They're affordable, reliable, and easy to install and service. I have started making roll-out shelves and trays with them a little differently than I used to, and they are more aesthetically pleasing in my opinion. Here's the basics:
This is a very strong design. It's quick to mill and assemble. From the top view, the user can't see the hardware and I find that satisfies most end users. I make these out of 1/2" baltic birch and lacquer everything prior to assembly and assemble using melamine glue and staples.