The Harrah's Tower was a particularly challenging piece.

With progressive conical acrylic panels (capable of "breathing" with the pressure differential of the building), small base, 28 rear-projectors on the center column, tons of high-end lighting fixtures and electronic components, and a Faux-Fire™ ringed platform... and all sections needed to be shippable and capable of being hauled through the casino lobby over slot machines and between columns and through doorways!

Even though the overall tower was a tough nut, the more interesting challenge were the conical panels. Have you ever tried making a conically curved, 1.13" thick panel... and make it match perfectly with the next section? Each successive level needed to interlock and be sealed so that there was no easily apparent seam... and employ a mullion that clamped the edges, but not so much as to crack the acrylic... but still allow the panels to "breathe" as the pressure within the building changes due to normal operation and during hurricane events.

Using CNC milling, the "tongue-in-groove" needed to be machined after the panels were curved!

With the center column needing to be the primary support, it required a significant cross-section, but still enough room for the rear projection photo-metrics, or throw. Using special mirrors and fun with geometry, we were able to accomplish the required coverage and still provide for adequate maintenance access.

The control room was in the basement, along with the boilers for the Faux-Fire™... and the installation was completed just before Hurricane Katrina hit. Just in time for the basement to become flooded. Good times.

The video below, "The Making of Harrah's Tower" will convey a little of what it was like to be involved in this project.